Getting access to a variable inside a sudo clause in a script with EOF

Clash Royale CLAN TAG#URR8PPP

up vote
2
down vote

favorite

2

PROBLEM:

I need to have a variable here called $user:

chown $user:$user "$HOME"/.bashrc

but it doesn't have access to it from outside the sudo and EOF:

for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

QUESTION:

How can I get access to $user in my script?

Here is the full script:

#!/bin/bash -x

SCRIPTNAME=`basename "$0"`

if [ "$#" -eq 0 ]
then
 echo "No arguments supplied"
 echo "Usage: $SCRIPTNAME user1name user2name(optional) user3name(optional)"
 sleep 10
 exit 27
fi

sleep 5
echo "Setting up server.........."
sleep 10

DIRBASHRCROOT="$HOME"/.bashrcroot
DIRBASHRC="$HOME"/.bashrc
#CURRENTDIR="./"
BASHRC=.bashrc
NANORC=.nanorc
BASHRCROOT=.bashrcroot
ROOT=root
USER1="$1"
USER2="$2"
USER3="$3"
USER_PROGRAMMER=""
SOURCE=sources.list
var=0
for i in "$@"
do
 if [ "$i" = root ]
 then
 break
 elif [ "$i" != root ]
 then
 var=`expr $var + 1`
 if [ $var -eq 3 ]
 then
 USER_PROGRAMMER=root
 fi
 fi
done
if [ $USER_PROGRAMMER != "" ]
then
 echo "$USER_PROGRAMMER is set and ready!"
fi
sleep 5
echo "Please select/provide the port-number for ssh in iptables:"
read port
PORT=$port
################# Make my variable global for all ########################3↓
echo "export CURRENTDIR="/tmp/svaka"" >> /root/.bashrc
touch /etc/profile.d/bashProgrammer.sh
echo "export CURRENTDIR="/tmp/svaka"" >> /etc/profile.d/bashProgrammer.sh
. /root/.bashrc
. /etc/profile
. /etc/profile.d/bashProgrammer.sh
################ Users and access settings #####################

checkIfUser()

 for name in "$@"
 do
 if id -u "$name" #>/dev/null 2>&1
 then
 echo "User: $name exists....setting up now!"
 sleep 5
 else
 echo "User: "$name" does not exists....creating now!"
 useradd -m -s /bin/bash "$name" #>/dev/null 2>&1
 sleep 5
 fi
 done

checkIfUser $1 $2 $3
################33 user passwords
userPass()
 chpasswd
 if [ "$?" = 0 ]
 then
 echo "Password for user $i changed successfully"
 sleep 5
 fi
 fi
 done

userPass $1 $2 $3
################################################ setting up iptables ####################3

cat << EOT >> /etc/iptables.test.rules
*filter

IPTABLES CODE HERE

COMMIT
EOT
sleep 5
iptables-restore < /etc/iptables.test.rules
sleep 5
iptables-save > /etc/iptables.up.rules
sleep 3
printf "#!/bin/bashn/sbin/iptables-restore < /etc/iptables.up.rules" > /etc/network/if-pre-up.d/iptables
chmod +x /etc/network/if-pre-up.d/iptables
sleep 6
###################################################33 sshd_config
cp -f "$CURRENTDIR/sshd_config" /etc/ssh/sshd_config
sed -i "s/Port 34504/Port $PORT/g" /etc/ssh/sshd_config
chmod 644 /etc/ssh/sshd_config
/etc/init.d/ssh restart
#################################################3333 Remove or comment out DVD/cd line from sources.list

sed -i '/deb cdrom:[Debian GNU/Linux/s/^/#/' /etc/apt/sources.list
####################################################33 update system
apt update && apt upgrade -y
##########################################3 Disable login www #########
passwd -l www-data
###############################################################
############################# check if programs installed and/or install
if [ ! -x /usr/bin/git ] || [ ! -x /usr/bin/wget ] || [ ! -x /usr/bin/curl ] || [ ! -x /usr/bin/gcc ] || [ ! -x /usr/bin/make ]
then
 echo "Some tools with which to work with data not found installing now......................"
 apt install -y git wget curl gcc make
fi

#####################################################3 update sources.list
cp -f $CURRENTDIR/$SOURCE /etc/apt/sources.list
chmod 644 /etc/apt/sources.list
wget http://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb
dpkg -i deb-multimedia-keyring_2016.8.1_all.deb
wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
apt update && apt upgrade -y
apt install -y vlc vlc-data browser-plugin-vlc mplayer youtube-dl libdvdcss2 libdvdnav4 libdvdread4 smplayer mencoder
sleep 5
apt update && apt upgrade -y
sleep 5
#################################### firmware
apt install -y firmware-linux-nonfree firmware-linux
sleep 5
################ NANO SYNTAX-HIGHLIGHTING #####################3
if [ ! -d "$CURRENTDIR/nanorc" ]
then
 if [ "$UID" != 0 ]
 then
 sudo -u "$ROOT" bash <<'EOF'
 sleep 5
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/.nanorc" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
EOF
 else
 echo "Doing user: $USER....please, wait!"
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 sleep 5
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/$NANORC" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
 fi
fi

echo "Finished setting up nano!"
################ LS_COLORS SETTINGS #############################

if [ "$UID" != 0 ]
then
 echo "This program should be run as root, exiting! now....."
 exit 1
 # sudo -i -u "$ROOT" bash <<'EOF'
 # BASHRCROOT=.bashrcroot
 # cp "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 # wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 # echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 # . "$HOME"/.bashrc
#EOF
else
 cp -f "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 chown root:root "$HOME"/.bashrc
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 sleep 5
 . "$HOME"/.bashrc
fi
for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

echo "Finished setting up your system!"
echo rm -rf /tmp/svaka

bash shell-script shell variable programming

share|improve this question

asked Sep 1 at 21:37

somethingSomething

1,55492954

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Is the chown even necessary, given that cp is executed via sudo -u?
  – steeldriver
  Sep 1 at 22:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver not sure on that?
  – somethingSomething
  Sep 1 at 22:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver If it's not necessary then it would be helpful if someone would explain that and show how to access the variable in the code
  – somethingSomething
  Sep 1 at 22:38
  

  
  
  
  

add a comment | 

up vote
2
down vote

favorite

2

PROBLEM:

I need to have a variable here called $user:

chown $user:$user "$HOME"/.bashrc

but it doesn't have access to it from outside the sudo and EOF:

for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

QUESTION:

How can I get access to $user in my script?

Here is the full script:

#!/bin/bash -x

SCRIPTNAME=`basename "$0"`

if [ "$#" -eq 0 ]
then
 echo "No arguments supplied"
 echo "Usage: $SCRIPTNAME user1name user2name(optional) user3name(optional)"
 sleep 10
 exit 27
fi

sleep 5
echo "Setting up server.........."
sleep 10

DIRBASHRCROOT="$HOME"/.bashrcroot
DIRBASHRC="$HOME"/.bashrc
#CURRENTDIR="./"
BASHRC=.bashrc
NANORC=.nanorc
BASHRCROOT=.bashrcroot
ROOT=root
USER1="$1"
USER2="$2"
USER3="$3"
USER_PROGRAMMER=""
SOURCE=sources.list
var=0
for i in "$@"
do
 if [ "$i" = root ]
 then
 break
 elif [ "$i" != root ]
 then
 var=`expr $var + 1`
 if [ $var -eq 3 ]
 then
 USER_PROGRAMMER=root
 fi
 fi
done
if [ $USER_PROGRAMMER != "" ]
then
 echo "$USER_PROGRAMMER is set and ready!"
fi
sleep 5
echo "Please select/provide the port-number for ssh in iptables:"
read port
PORT=$port
################# Make my variable global for all ########################3↓
echo "export CURRENTDIR="/tmp/svaka"" >> /root/.bashrc
touch /etc/profile.d/bashProgrammer.sh
echo "export CURRENTDIR="/tmp/svaka"" >> /etc/profile.d/bashProgrammer.sh
. /root/.bashrc
. /etc/profile
. /etc/profile.d/bashProgrammer.sh
################ Users and access settings #####################

checkIfUser()

 for name in "$@"
 do
 if id -u "$name" #>/dev/null 2>&1
 then
 echo "User: $name exists....setting up now!"
 sleep 5
 else
 echo "User: "$name" does not exists....creating now!"
 useradd -m -s /bin/bash "$name" #>/dev/null 2>&1
 sleep 5
 fi
 done

checkIfUser $1 $2 $3
################33 user passwords
userPass()
 chpasswd
 if [ "$?" = 0 ]
 then
 echo "Password for user $i changed successfully"
 sleep 5
 fi
 fi
 done

userPass $1 $2 $3
################################################ setting up iptables ####################3

cat << EOT >> /etc/iptables.test.rules
*filter

IPTABLES CODE HERE

COMMIT
EOT
sleep 5
iptables-restore < /etc/iptables.test.rules
sleep 5
iptables-save > /etc/iptables.up.rules
sleep 3
printf "#!/bin/bashn/sbin/iptables-restore < /etc/iptables.up.rules" > /etc/network/if-pre-up.d/iptables
chmod +x /etc/network/if-pre-up.d/iptables
sleep 6
###################################################33 sshd_config
cp -f "$CURRENTDIR/sshd_config" /etc/ssh/sshd_config
sed -i "s/Port 34504/Port $PORT/g" /etc/ssh/sshd_config
chmod 644 /etc/ssh/sshd_config
/etc/init.d/ssh restart
#################################################3333 Remove or comment out DVD/cd line from sources.list

sed -i '/deb cdrom:[Debian GNU/Linux/s/^/#/' /etc/apt/sources.list
####################################################33 update system
apt update && apt upgrade -y
##########################################3 Disable login www #########
passwd -l www-data
###############################################################
############################# check if programs installed and/or install
if [ ! -x /usr/bin/git ] || [ ! -x /usr/bin/wget ] || [ ! -x /usr/bin/curl ] || [ ! -x /usr/bin/gcc ] || [ ! -x /usr/bin/make ]
then
 echo "Some tools with which to work with data not found installing now......................"
 apt install -y git wget curl gcc make
fi

#####################################################3 update sources.list
cp -f $CURRENTDIR/$SOURCE /etc/apt/sources.list
chmod 644 /etc/apt/sources.list
wget http://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb
dpkg -i deb-multimedia-keyring_2016.8.1_all.deb
wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
apt update && apt upgrade -y
apt install -y vlc vlc-data browser-plugin-vlc mplayer youtube-dl libdvdcss2 libdvdnav4 libdvdread4 smplayer mencoder
sleep 5
apt update && apt upgrade -y
sleep 5
#################################### firmware
apt install -y firmware-linux-nonfree firmware-linux
sleep 5
################ NANO SYNTAX-HIGHLIGHTING #####################3
if [ ! -d "$CURRENTDIR/nanorc" ]
then
 if [ "$UID" != 0 ]
 then
 sudo -u "$ROOT" bash <<'EOF'
 sleep 5
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/.nanorc" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
EOF
 else
 echo "Doing user: $USER....please, wait!"
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 sleep 5
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/$NANORC" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
 fi
fi

echo "Finished setting up nano!"
################ LS_COLORS SETTINGS #############################

if [ "$UID" != 0 ]
then
 echo "This program should be run as root, exiting! now....."
 exit 1
 # sudo -i -u "$ROOT" bash <<'EOF'
 # BASHRCROOT=.bashrcroot
 # cp "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 # wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 # echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 # . "$HOME"/.bashrc
#EOF
else
 cp -f "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 chown root:root "$HOME"/.bashrc
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 sleep 5
 . "$HOME"/.bashrc
fi
for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

echo "Finished setting up your system!"
echo rm -rf /tmp/svaka

bash shell-script shell variable programming

share|improve this question

asked Sep 1 at 21:37

somethingSomething

1,55492954

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Is the chown even necessary, given that cp is executed via sudo -u?
  – steeldriver
  Sep 1 at 22:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver not sure on that?
  – somethingSomething
  Sep 1 at 22:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver If it's not necessary then it would be helpful if someone would explain that and show how to access the variable in the code
  – somethingSomething
  Sep 1 at 22:38
  

  
  
  
  

add a comment | 

up vote
2
down vote

favorite

2

up vote
2
down vote

favorite

2

2

PROBLEM:

I need to have a variable here called $user:

chown $user:$user "$HOME"/.bashrc

but it doesn't have access to it from outside the sudo and EOF:

for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

QUESTION:

How can I get access to $user in my script?

Here is the full script:

#!/bin/bash -x

SCRIPTNAME=`basename "$0"`

if [ "$#" -eq 0 ]
then
 echo "No arguments supplied"
 echo "Usage: $SCRIPTNAME user1name user2name(optional) user3name(optional)"
 sleep 10
 exit 27
fi

sleep 5
echo "Setting up server.........."
sleep 10

DIRBASHRCROOT="$HOME"/.bashrcroot
DIRBASHRC="$HOME"/.bashrc
#CURRENTDIR="./"
BASHRC=.bashrc
NANORC=.nanorc
BASHRCROOT=.bashrcroot
ROOT=root
USER1="$1"
USER2="$2"
USER3="$3"
USER_PROGRAMMER=""
SOURCE=sources.list
var=0
for i in "$@"
do
 if [ "$i" = root ]
 then
 break
 elif [ "$i" != root ]
 then
 var=`expr $var + 1`
 if [ $var -eq 3 ]
 then
 USER_PROGRAMMER=root
 fi
 fi
done
if [ $USER_PROGRAMMER != "" ]
then
 echo "$USER_PROGRAMMER is set and ready!"
fi
sleep 5
echo "Please select/provide the port-number for ssh in iptables:"
read port
PORT=$port
################# Make my variable global for all ########################3↓
echo "export CURRENTDIR="/tmp/svaka"" >> /root/.bashrc
touch /etc/profile.d/bashProgrammer.sh
echo "export CURRENTDIR="/tmp/svaka"" >> /etc/profile.d/bashProgrammer.sh
. /root/.bashrc
. /etc/profile
. /etc/profile.d/bashProgrammer.sh
################ Users and access settings #####################

checkIfUser()

 for name in "$@"
 do
 if id -u "$name" #>/dev/null 2>&1
 then
 echo "User: $name exists....setting up now!"
 sleep 5
 else
 echo "User: "$name" does not exists....creating now!"
 useradd -m -s /bin/bash "$name" #>/dev/null 2>&1
 sleep 5
 fi
 done

checkIfUser $1 $2 $3
################33 user passwords
userPass()
 chpasswd
 if [ "$?" = 0 ]
 then
 echo "Password for user $i changed successfully"
 sleep 5
 fi
 fi
 done

userPass $1 $2 $3
################################################ setting up iptables ####################3

cat << EOT >> /etc/iptables.test.rules
*filter

IPTABLES CODE HERE

COMMIT
EOT
sleep 5
iptables-restore < /etc/iptables.test.rules
sleep 5
iptables-save > /etc/iptables.up.rules
sleep 3
printf "#!/bin/bashn/sbin/iptables-restore < /etc/iptables.up.rules" > /etc/network/if-pre-up.d/iptables
chmod +x /etc/network/if-pre-up.d/iptables
sleep 6
###################################################33 sshd_config
cp -f "$CURRENTDIR/sshd_config" /etc/ssh/sshd_config
sed -i "s/Port 34504/Port $PORT/g" /etc/ssh/sshd_config
chmod 644 /etc/ssh/sshd_config
/etc/init.d/ssh restart
#################################################3333 Remove or comment out DVD/cd line from sources.list

sed -i '/deb cdrom:[Debian GNU/Linux/s/^/#/' /etc/apt/sources.list
####################################################33 update system
apt update && apt upgrade -y
##########################################3 Disable login www #########
passwd -l www-data
###############################################################
############################# check if programs installed and/or install
if [ ! -x /usr/bin/git ] || [ ! -x /usr/bin/wget ] || [ ! -x /usr/bin/curl ] || [ ! -x /usr/bin/gcc ] || [ ! -x /usr/bin/make ]
then
 echo "Some tools with which to work with data not found installing now......................"
 apt install -y git wget curl gcc make
fi

#####################################################3 update sources.list
cp -f $CURRENTDIR/$SOURCE /etc/apt/sources.list
chmod 644 /etc/apt/sources.list
wget http://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb
dpkg -i deb-multimedia-keyring_2016.8.1_all.deb
wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
apt update && apt upgrade -y
apt install -y vlc vlc-data browser-plugin-vlc mplayer youtube-dl libdvdcss2 libdvdnav4 libdvdread4 smplayer mencoder
sleep 5
apt update && apt upgrade -y
sleep 5
#################################### firmware
apt install -y firmware-linux-nonfree firmware-linux
sleep 5
################ NANO SYNTAX-HIGHLIGHTING #####################3
if [ ! -d "$CURRENTDIR/nanorc" ]
then
 if [ "$UID" != 0 ]
 then
 sudo -u "$ROOT" bash <<'EOF'
 sleep 5
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/.nanorc" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
EOF
 else
 echo "Doing user: $USER....please, wait!"
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 sleep 5
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/$NANORC" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
 fi
fi

echo "Finished setting up nano!"
################ LS_COLORS SETTINGS #############################

if [ "$UID" != 0 ]
then
 echo "This program should be run as root, exiting! now....."
 exit 1
 # sudo -i -u "$ROOT" bash <<'EOF'
 # BASHRCROOT=.bashrcroot
 # cp "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 # wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 # echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 # . "$HOME"/.bashrc
#EOF
else
 cp -f "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 chown root:root "$HOME"/.bashrc
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 sleep 5
 . "$HOME"/.bashrc
fi
for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

echo "Finished setting up your system!"
echo rm -rf /tmp/svaka

bash shell-script shell variable programming

share|improve this question

asked Sep 1 at 21:37

somethingSomething

1,55492954

PROBLEM:

I need to have a variable here called $user:

chown $user:$user "$HOME"/.bashrc

but it doesn't have access to it from outside the sudo and EOF:

for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

QUESTION:

How can I get access to $user in my script?

Here is the full script:

#!/bin/bash -x

SCRIPTNAME=`basename "$0"`

if [ "$#" -eq 0 ]
then
 echo "No arguments supplied"
 echo "Usage: $SCRIPTNAME user1name user2name(optional) user3name(optional)"
 sleep 10
 exit 27
fi

sleep 5
echo "Setting up server.........."
sleep 10

DIRBASHRCROOT="$HOME"/.bashrcroot
DIRBASHRC="$HOME"/.bashrc
#CURRENTDIR="./"
BASHRC=.bashrc
NANORC=.nanorc
BASHRCROOT=.bashrcroot
ROOT=root
USER1="$1"
USER2="$2"
USER3="$3"
USER_PROGRAMMER=""
SOURCE=sources.list
var=0
for i in "$@"
do
 if [ "$i" = root ]
 then
 break
 elif [ "$i" != root ]
 then
 var=`expr $var + 1`
 if [ $var -eq 3 ]
 then
 USER_PROGRAMMER=root
 fi
 fi
done
if [ $USER_PROGRAMMER != "" ]
then
 echo "$USER_PROGRAMMER is set and ready!"
fi
sleep 5
echo "Please select/provide the port-number for ssh in iptables:"
read port
PORT=$port
################# Make my variable global for all ########################3↓
echo "export CURRENTDIR="/tmp/svaka"" >> /root/.bashrc
touch /etc/profile.d/bashProgrammer.sh
echo "export CURRENTDIR="/tmp/svaka"" >> /etc/profile.d/bashProgrammer.sh
. /root/.bashrc
. /etc/profile
. /etc/profile.d/bashProgrammer.sh
################ Users and access settings #####################

checkIfUser()

 for name in "$@"
 do
 if id -u "$name" #>/dev/null 2>&1
 then
 echo "User: $name exists....setting up now!"
 sleep 5
 else
 echo "User: "$name" does not exists....creating now!"
 useradd -m -s /bin/bash "$name" #>/dev/null 2>&1
 sleep 5
 fi
 done

checkIfUser $1 $2 $3
################33 user passwords
userPass()
 chpasswd
 if [ "$?" = 0 ]
 then
 echo "Password for user $i changed successfully"
 sleep 5
 fi
 fi
 done

userPass $1 $2 $3
################################################ setting up iptables ####################3

cat << EOT >> /etc/iptables.test.rules
*filter

IPTABLES CODE HERE

COMMIT
EOT
sleep 5
iptables-restore < /etc/iptables.test.rules
sleep 5
iptables-save > /etc/iptables.up.rules
sleep 3
printf "#!/bin/bashn/sbin/iptables-restore < /etc/iptables.up.rules" > /etc/network/if-pre-up.d/iptables
chmod +x /etc/network/if-pre-up.d/iptables
sleep 6
###################################################33 sshd_config
cp -f "$CURRENTDIR/sshd_config" /etc/ssh/sshd_config
sed -i "s/Port 34504/Port $PORT/g" /etc/ssh/sshd_config
chmod 644 /etc/ssh/sshd_config
/etc/init.d/ssh restart
#################################################3333 Remove or comment out DVD/cd line from sources.list

sed -i '/deb cdrom:[Debian GNU/Linux/s/^/#/' /etc/apt/sources.list
####################################################33 update system
apt update && apt upgrade -y
##########################################3 Disable login www #########
passwd -l www-data
###############################################################
############################# check if programs installed and/or install
if [ ! -x /usr/bin/git ] || [ ! -x /usr/bin/wget ] || [ ! -x /usr/bin/curl ] || [ ! -x /usr/bin/gcc ] || [ ! -x /usr/bin/make ]
then
 echo "Some tools with which to work with data not found installing now......................"
 apt install -y git wget curl gcc make
fi

#####################################################3 update sources.list
cp -f $CURRENTDIR/$SOURCE /etc/apt/sources.list
chmod 644 /etc/apt/sources.list
wget http://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb
dpkg -i deb-multimedia-keyring_2016.8.1_all.deb
wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
apt update && apt upgrade -y
apt install -y vlc vlc-data browser-plugin-vlc mplayer youtube-dl libdvdcss2 libdvdnav4 libdvdread4 smplayer mencoder
sleep 5
apt update && apt upgrade -y
sleep 5
#################################### firmware
apt install -y firmware-linux-nonfree firmware-linux
sleep 5
################ NANO SYNTAX-HIGHLIGHTING #####################3
if [ ! -d "$CURRENTDIR/nanorc" ]
then
 if [ "$UID" != 0 ]
 then
 sudo -u "$ROOT" bash <<'EOF'
 sleep 5
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/.nanorc" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
EOF
 else
 echo "Doing user: $USER....please, wait!"
 git clone https://github.com/nanorc/nanorc.git
 sleep 5
 cd nanorc
 sleep 5
 make install-global
 sleep 5
 cp -f "$CURRENTDIR/$NANORC" /etc/nanorc
 chown root:root /etc/nanorc
 chmod 644 /etc/nanorc
 if [ "$?" = 0 ]
 then
 echo "Implementing a custom nanorc file succeeded!"
 else
 echo "Nano setup DID NOT SUCCEED!"
 fi
 fi
fi

echo "Finished setting up nano!"
################ LS_COLORS SETTINGS #############################

if [ "$UID" != 0 ]
then
 echo "This program should be run as root, exiting! now....."
 exit 1
 # sudo -i -u "$ROOT" bash <<'EOF'
 # BASHRCROOT=.bashrcroot
 # cp "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 # wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 # echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 # . "$HOME"/.bashrc
#EOF
else
 cp -f "$CURRENTDIR/$BASHRCROOT" "$HOME"/.bashrc
 chown root:root "$HOME"/.bashrc
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 sleep 5
 . "$HOME"/.bashrc
fi
for user in "$@"
do
 if [ "$user" = root ]
 then
 continue
 fi
 sudo -i -u "$user" bash <<'EOF'
 sleep 5
 cp -f $CURRENTDIR/.bashrc "$HOME"/.bashrc
 chown $user:$user "$HOME"/.bashrc
 sleep 5
 chmod 644 "$HOME"/.bashrc
 sleep 5
 wget https://raw.github.com/trapd00r/LS_COLORS/master/LS_COLORS -O "$HOME"/.dircolors
 sleep 5
 echo 'eval $(dircolors -b $HOME/.dircolors)' >> "$HOME"/.bashrc
 . "$HOME"/.bashrc
EOF
done

echo "Finished setting up your system!"
echo rm -rf /tmp/svaka

bash shell-script shell variable programming

share|improve this question

asked Sep 1 at 21:37

somethingSomething

1,55492954

share|improve this question

share|improve this question

asked Sep 1 at 21:37

somethingSomething

1,55492954

asked Sep 1 at 21:37

somethingSomething

1,55492954

asked Sep 1 at 21:37

somethingSomething

1,55492954

1,55492954

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Is the chown even necessary, given that cp is executed via sudo -u?
  – steeldriver
  Sep 1 at 22:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver not sure on that?
  – somethingSomething
  Sep 1 at 22:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver If it's not necessary then it would be helpful if someone would explain that and show how to access the variable in the code
  – somethingSomething
  Sep 1 at 22:38
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Is the chown even necessary, given that cp is executed via sudo -u?
  – steeldriver
  Sep 1 at 22:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver not sure on that?
  – somethingSomething
  Sep 1 at 22:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @steeldriver If it's not necessary then it would be helpful if someone would explain that and show how to access the variable in the code
  – somethingSomething
  Sep 1 at 22:38
  

  
  
  
  

1

1

Is the chown even necessary, given that cp is executed via sudo -u?
– steeldriver
Sep 1 at 22:31

Is the chown even necessary, given that cp is executed via sudo -u?
– steeldriver
Sep 1 at 22:31

@steeldriver not sure on that?
– somethingSomething
Sep 1 at 22:33

@steeldriver not sure on that?
– somethingSomething
Sep 1 at 22:33

@steeldriver If it's not necessary then it would be helpful if someone would explain that and show how to access the variable in the code
– somethingSomething
Sep 1 at 22:38

@steeldriver If it's not necessary then it would be helpful if someone would explain that and show how to access the variable in the code
– somethingSomething
Sep 1 at 22:38

add a comment | 

2 Answers
2

active

oldest

votes

up vote
2
down vote



accepted

As a general solution, you can pass additional environment variables to a sudo command using possibly multiple VAR=value pairs in the command-line to be executed.

In this particular case, to pass the $user variable, you can use:

sudo -i -u "$user" user="$user" bash <<'EOF'
...
chown $user:$user "$HOME"/.bashrc
...
EOF

(You could also pass variables such as $CURRENTDIR using this method instead of pushing this through rcfiles, as it seems you're doing it that way from the rest of the script.)

You need some particular permissions for sudo to allow you to set additional environment variables. Like this section of the sudo manpage states:

If the setenv option is set in sudoers, the command to be run has the SETENV tag set or the command matched is ALL, the user may set variables that would overwise be forbidden. See sudoers(5) for more information.

share|improve this answer

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

add a comment | 

up vote
3
down vote

You can also use sudo -Es and preserve the environment from the calling user. For example:

$ a=hi sudo -Es env | grep -i ^a=
a=hi

Per man sudo:

 -E, --preserve-env
 Indicates to the security policy that the user wishes to preserve their 
 existing environment variables. The security policy may return an 
 error if the user does not have permission to preserve the environment.

 -s, --shell
 Run the shell specified by the SHELL environment variable if it is set 
 or the shell specified by the invoking user's password database entry. 
 If a command is specified, it is passed to the shell for execution via 
 the shell's -c option. If no command is specified, an interactive 
 shell is executed.

share|improve this answer

answered Sep 2 at 0:13

slm♦

237k65486659

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  O my god wow, thank's @slm
  – somethingSomething
  Sep 2 at 0:47
  

  
  
  
  

add a comment | 

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
2
down vote



accepted

As a general solution, you can pass additional environment variables to a sudo command using possibly multiple VAR=value pairs in the command-line to be executed.

In this particular case, to pass the $user variable, you can use:

sudo -i -u "$user" user="$user" bash <<'EOF'
...
chown $user:$user "$HOME"/.bashrc
...
EOF

(You could also pass variables such as $CURRENTDIR using this method instead of pushing this through rcfiles, as it seems you're doing it that way from the rest of the script.)

You need some particular permissions for sudo to allow you to set additional environment variables. Like this section of the sudo manpage states:

If the setenv option is set in sudoers, the command to be run has the SETENV tag set or the command matched is ALL, the user may set variables that would overwise be forbidden. See sudoers(5) for more information.

share|improve this answer

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

add a comment | 

up vote
2
down vote



accepted

As a general solution, you can pass additional environment variables to a sudo command using possibly multiple VAR=value pairs in the command-line to be executed.

In this particular case, to pass the $user variable, you can use:

sudo -i -u "$user" user="$user" bash <<'EOF'
...
chown $user:$user "$HOME"/.bashrc
...
EOF

(You could also pass variables such as $CURRENTDIR using this method instead of pushing this through rcfiles, as it seems you're doing it that way from the rest of the script.)

You need some particular permissions for sudo to allow you to set additional environment variables. Like this section of the sudo manpage states:

If the setenv option is set in sudoers, the command to be run has the SETENV tag set or the command matched is ALL, the user may set variables that would overwise be forbidden. See sudoers(5) for more information.

share|improve this answer

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

add a comment | 

up vote
2
down vote



accepted

up vote
2
down vote



accepted

As a general solution, you can pass additional environment variables to a sudo command using possibly multiple VAR=value pairs in the command-line to be executed.

In this particular case, to pass the $user variable, you can use:

sudo -i -u "$user" user="$user" bash <<'EOF'
...
chown $user:$user "$HOME"/.bashrc
...
EOF

(You could also pass variables such as $CURRENTDIR using this method instead of pushing this through rcfiles, as it seems you're doing it that way from the rest of the script.)

You need some particular permissions for sudo to allow you to set additional environment variables. Like this section of the sudo manpage states:

If the setenv option is set in sudoers, the command to be run has the SETENV tag set or the command matched is ALL, the user may set variables that would overwise be forbidden. See sudoers(5) for more information.

share|improve this answer

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

As a general solution, you can pass additional environment variables to a sudo command using possibly multiple VAR=value pairs in the command-line to be executed.

In this particular case, to pass the $user variable, you can use:

sudo -i -u "$user" user="$user" bash <<'EOF'
...
chown $user:$user "$HOME"/.bashrc
...
EOF

(You could also pass variables such as $CURRENTDIR using this method instead of pushing this through rcfiles, as it seems you're doing it that way from the rest of the script.)

You need some particular permissions for sudo to allow you to set additional environment variables. Like this section of the sudo manpage states:

If the setenv option is set in sudoers, the command to be run has the SETENV tag set or the command matched is ALL, the user may set variables that would overwise be forbidden. See sudoers(5) for more information.

share|improve this answer

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

share|improve this answer

share|improve this answer

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

answered Sep 1 at 22:42

Filipe Brandenburger

3,694622

3,694622

add a comment | 

add a comment | 

up vote
3
down vote

You can also use sudo -Es and preserve the environment from the calling user. For example:

$ a=hi sudo -Es env | grep -i ^a=
a=hi

Per man sudo:

 -E, --preserve-env
 Indicates to the security policy that the user wishes to preserve their 
 existing environment variables. The security policy may return an 
 error if the user does not have permission to preserve the environment.

 -s, --shell
 Run the shell specified by the SHELL environment variable if it is set 
 or the shell specified by the invoking user's password database entry. 
 If a command is specified, it is passed to the shell for execution via 
 the shell's -c option. If no command is specified, an interactive 
 shell is executed.

share|improve this answer

answered Sep 2 at 0:13

slm♦

237k65486659

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  O my god wow, thank's @slm
  – somethingSomething
  Sep 2 at 0:47
  

  
  
  
  

add a comment | 

up vote
3
down vote

You can also use sudo -Es and preserve the environment from the calling user. For example:

$ a=hi sudo -Es env | grep -i ^a=
a=hi

Per man sudo:

 -E, --preserve-env
 Indicates to the security policy that the user wishes to preserve their 
 existing environment variables. The security policy may return an 
 error if the user does not have permission to preserve the environment.

 -s, --shell
 Run the shell specified by the SHELL environment variable if it is set 
 or the shell specified by the invoking user's password database entry. 
 If a command is specified, it is passed to the shell for execution via 
 the shell's -c option. If no command is specified, an interactive 
 shell is executed.

share|improve this answer

answered Sep 2 at 0:13

slm♦

237k65486659

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  O my god wow, thank's @slm
  – somethingSomething
  Sep 2 at 0:47
  

  
  
  
  

add a comment | 

up vote
3
down vote

up vote
3
down vote

You can also use sudo -Es and preserve the environment from the calling user. For example:

$ a=hi sudo -Es env | grep -i ^a=
a=hi

Per man sudo:

 -E, --preserve-env
 Indicates to the security policy that the user wishes to preserve their 
 existing environment variables. The security policy may return an 
 error if the user does not have permission to preserve the environment.

 -s, --shell
 Run the shell specified by the SHELL environment variable if it is set 
 or the shell specified by the invoking user's password database entry. 
 If a command is specified, it is passed to the shell for execution via 
 the shell's -c option. If no command is specified, an interactive 
 shell is executed.

share|improve this answer

answered Sep 2 at 0:13

slm♦

237k65486659

You can also use sudo -Es and preserve the environment from the calling user. For example:

$ a=hi sudo -Es env | grep -i ^a=
a=hi

Per man sudo:

 -E, --preserve-env
 Indicates to the security policy that the user wishes to preserve their 
 existing environment variables. The security policy may return an 
 error if the user does not have permission to preserve the environment.

 -s, --shell
 Run the shell specified by the SHELL environment variable if it is set 
 or the shell specified by the invoking user's password database entry. 
 If a command is specified, it is passed to the shell for execution via 
 the shell's -c option. If no command is specified, an interactive 
 shell is executed.

share|improve this answer

answered Sep 2 at 0:13

slm♦

237k65486659

share|improve this answer

share|improve this answer

answered Sep 2 at 0:13

slm♦

237k65486659

answered Sep 2 at 0:13

slm♦

237k65486659

answered Sep 2 at 0:13

slm♦

237k65486659

237k65486659

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  O my god wow, thank's @slm
  – somethingSomething
  Sep 2 at 0:47
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  O my god wow, thank's @slm
  – somethingSomething
  Sep 2 at 0:47
  

  
  
  
  

1

1

O my god wow, thank's @slm
– somethingSomething
Sep 2 at 0:47

O my god wow, thank's @slm
– somethingSomething
Sep 2 at 0:47

add a comment | 

 

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