Sed to find and replace regular expression

up vote
1
down vote

favorite

I have a file that I need to replace all matches below:

," "n to ,"ZYY"n
,"ZZY"n to ,"ZYY"n
,"GMZ"n to ,"FPZ"n

I'm trying to use the command: sed 's/," "/,"ZYY"/g' Packs.txt but it is not working.

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

asked 4 hours ago

Pedro Lopes

2

Please define not working. The syntax seems ok.
â€“Â Rui F Ribeiro
4 hours ago

When i run the command, don't replace as i wish.
â€“Â Pedro Lopes
3 hours ago

add a commentÂ |Â

up vote
1
down vote

favorite

I have a file that I need to replace all matches below:

," "n to ,"ZYY"n
,"ZZY"n to ,"ZYY"n
,"GMZ"n to ,"FPZ"n

I'm trying to use the command: sed 's/," "/,"ZYY"/g' Packs.txt but it is not working.

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

asked 4 hours ago

Pedro Lopes

2

Please define not working. The syntax seems ok.
â€“Â Rui F Ribeiro
4 hours ago

When i run the command, don't replace as i wish.
â€“Â Pedro Lopes
3 hours ago

add a commentÂ |Â

up vote
1
down vote

favorite

I have a file that I need to replace all matches below:

," "n to ,"ZYY"n
,"ZZY"n to ,"ZYY"n
,"GMZ"n to ,"FPZ"n

I'm trying to use the command: sed 's/," "/,"ZYY"/g' Packs.txt but it is not working.

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

asked 4 hours ago

Pedro Lopes

I have a file that I need to replace all matches below:

," "n to ,"ZYY"n
,"ZZY"n to ,"ZYY"n
,"GMZ"n to ,"FPZ"n

I'm trying to use the command: sed 's/," "/,"ZYY"/g' Packs.txt but it is not working.

sed

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

asked 4 hours ago

Pedro Lopes

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

asked 4 hours ago

Pedro Lopes

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

edited 4 hours ago

Rui F Ribeiro

37.3k1374118

asked 4 hours ago

Pedro Lopes

asked 4 hours ago

Pedro Lopes

asked 4 hours ago

Pedro Lopes

2

Please define not working. The syntax seems ok.
â€“Â Rui F Ribeiro
4 hours ago

When i run the command, don't replace as i wish.
â€“Â Pedro Lopes
3 hours ago

add a commentÂ |Â

2

Please define not working. The syntax seems ok.
â€“Â Rui F Ribeiro
4 hours ago

When i run the command, don't replace as i wish.
â€“Â Pedro Lopes
3 hours ago

Please define not working. The syntax seems ok.
â€“Â Rui F Ribeiro
4 hours ago

When i run the command, don't replace as i wish.
â€“Â Pedro Lopes
3 hours ago

add a commentÂ |Â

3 Answers
3

active

oldest

votes

up vote
2
down vote

If you have a collection of conversions you need to do, you can put them into a file. You can then use the "-f _sed_file_" to process all of them. For example, if you input file is something like this test.in file:

This," ",is,a,test
This,too,"ZZY",is,a,test
And,so,"GMZ",is,this

And you have the following sed file:

s/," "/,"ZYY"/g
s/,"ZZY"/,"ZYY"/g
s/,"GMZ"/,"FPZ"/g

You can run the following command:

sed -f test.sed test.in

To get the following output:

This,"ZYY",is,a,test
This,too,"ZYY",is,a,test
And,so,"FPZ",is,this

Hope this helps.

answered 4 hours ago

Lewis M

5264

Will fail with an unexpected replacement for cases not at the end of the line as described in the question.
â€“Â DopeGhoti
3 hours ago

add a commentÂ |Â

up vote
2
down vote

This appears to do the trick:

$ sed -E 's/,"( |ZZY)"$/,"ZYY"/;s/,"GMZ"$/,"FPZ"/' inputfile

The main thing here is using the $ anchor to mark the end of the line, rather than searching for a n.

answered 3 hours ago

DopeGhoti

41.8k55180

add a commentÂ |Â

up vote
0
down vote

This will change all three strings to what you desire and only send the changes to standard output:

 sed -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

I used the entire strings and not just the letters between the double quotes as you didn't specify whether those specific strings appear anywhere else in the file.

Once you are satisfied with the outcome, you can use the below command to change the file itself.

sed -i -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

answered 4 hours ago

Nasir Riley

1,884139

add a commentÂ |Â

Your Answer

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: false,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);

);

draft saved

draft discarded

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f477085%2fsed-to-find-and-replace-regular-expression%23new-answer', 'question_page');

);

Post as a guest

Name

3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

up vote
2
down vote

This," ",is,a,test
This,too,"ZZY",is,a,test
And,so,"GMZ",is,this

And you have the following sed file:

s/," "/,"ZYY"/g
s/,"ZZY"/,"ZYY"/g
s/,"GMZ"/,"FPZ"/g

You can run the following command:

sed -f test.sed test.in

To get the following output:

This,"ZYY",is,a,test
This,too,"ZYY",is,a,test
And,so,"FPZ",is,this

Hope this helps.

answered 4 hours ago

Lewis M

5264

Will fail with an unexpected replacement for cases not at the end of the line as described in the question.
â€“Â DopeGhoti
3 hours ago

add a commentÂ |Â

up vote
2
down vote

This," ",is,a,test
This,too,"ZZY",is,a,test
And,so,"GMZ",is,this

And you have the following sed file:

s/," "/,"ZYY"/g
s/,"ZZY"/,"ZYY"/g
s/,"GMZ"/,"FPZ"/g

You can run the following command:

sed -f test.sed test.in

To get the following output:

This,"ZYY",is,a,test
This,too,"ZYY",is,a,test
And,so,"FPZ",is,this

Hope this helps.

answered 4 hours ago

Lewis M

5264

Will fail with an unexpected replacement for cases not at the end of the line as described in the question.
â€“Â DopeGhoti
3 hours ago

add a commentÂ |Â

up vote
2
down vote

This," ",is,a,test
This,too,"ZZY",is,a,test
And,so,"GMZ",is,this

And you have the following sed file:

s/," "/,"ZYY"/g
s/,"ZZY"/,"ZYY"/g
s/,"GMZ"/,"FPZ"/g

You can run the following command:

sed -f test.sed test.in

To get the following output:

This,"ZYY",is,a,test
This,too,"ZYY",is,a,test
And,so,"FPZ",is,this

Hope this helps.

answered 4 hours ago

Lewis M

5264

This," ",is,a,test
This,too,"ZZY",is,a,test
And,so,"GMZ",is,this

And you have the following sed file:

s/," "/,"ZYY"/g
s/,"ZZY"/,"ZYY"/g
s/,"GMZ"/,"FPZ"/g

You can run the following command:

sed -f test.sed test.in

To get the following output:

This,"ZYY",is,a,test
This,too,"ZYY",is,a,test
And,so,"FPZ",is,this

Hope this helps.

answered 4 hours ago

Lewis M

5264

answered 4 hours ago

Lewis M

5264

answered 4 hours ago

Lewis M

5264

answered 4 hours ago

Lewis M

5264

Will fail with an unexpected replacement for cases not at the end of the line as described in the question.
â€“Â DopeGhoti
3 hours ago

add a commentÂ |Â

Will fail with an unexpected replacement for cases not at the end of the line as described in the question.
â€“Â DopeGhoti
3 hours ago

Will fail with an unexpected replacement for cases not at the end of the line as described in the question.
â€“Â DopeGhoti
3 hours ago

add a commentÂ |Â

up vote
2
down vote

This appears to do the trick:

$ sed -E 's/,"( |ZZY)"$/,"ZYY"/;s/,"GMZ"$/,"FPZ"/' inputfile

The main thing here is using the $ anchor to mark the end of the line, rather than searching for a n.

answered 3 hours ago

DopeGhoti

41.8k55180

add a commentÂ |Â

up vote
2
down vote

This appears to do the trick:

$ sed -E 's/,"( |ZZY)"$/,"ZYY"/;s/,"GMZ"$/,"FPZ"/' inputfile

The main thing here is using the $ anchor to mark the end of the line, rather than searching for a n.

answered 3 hours ago

DopeGhoti

41.8k55180

add a commentÂ |Â

up vote
2
down vote

This appears to do the trick:

$ sed -E 's/,"( |ZZY)"$/,"ZYY"/;s/,"GMZ"$/,"FPZ"/' inputfile

The main thing here is using the $ anchor to mark the end of the line, rather than searching for a n.

answered 3 hours ago

DopeGhoti

41.8k55180

This appears to do the trick:

$ sed -E 's/,"( |ZZY)"$/,"ZYY"/;s/,"GMZ"$/,"FPZ"/' inputfile

The main thing here is using the $ anchor to mark the end of the line, rather than searching for a n.

answered 3 hours ago

DopeGhoti

41.8k55180

answered 3 hours ago

DopeGhoti

41.8k55180

answered 3 hours ago

DopeGhoti

41.8k55180

answered 3 hours ago

DopeGhoti

41.8k55180

add a commentÂ |Â

up vote
0
down vote

This will change all three strings to what you desire and only send the changes to standard output:

 sed -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

I used the entire strings and not just the letters between the double quotes as you didn't specify whether those specific strings appear anywhere else in the file.

Once you are satisfied with the outcome, you can use the below command to change the file itself.

sed -i -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

answered 4 hours ago

Nasir Riley

1,884139

add a commentÂ |Â

up vote
0
down vote

This will change all three strings to what you desire and only send the changes to standard output:

 sed -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

I used the entire strings and not just the letters between the double quotes as you didn't specify whether those specific strings appear anywhere else in the file.

Once you are satisfied with the outcome, you can use the below command to change the file itself.

sed -i -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

answered 4 hours ago

Nasir Riley

1,884139

add a commentÂ |Â

up vote
0
down vote

This will change all three strings to what you desire and only send the changes to standard output:

 sed -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

I used the entire strings and not just the letters between the double quotes as you didn't specify whether those specific strings appear anywhere else in the file.

Once you are satisfied with the outcome, you can use the below command to change the file itself.

sed -i -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

answered 4 hours ago

Nasir Riley

1,884139

This will change all three strings to what you desire and only send the changes to standard output:

 sed -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

I used the entire strings and not just the letters between the double quotes as you didn't specify whether those specific strings appear anywhere else in the file.

Once you are satisfied with the outcome, you can use the below command to change the file itself.

sed -i -e 's|," "\n|,"ZYY"\n|g' -e 's|,"ZZY"\n|,"ZYY"\n|g' -e 's|,"GMZ"\n|,"FPZ"\n|g' Packs.txt

answered 4 hours ago

Nasir Riley

1,884139

answered 4 hours ago

Nasir Riley

1,884139

answered 4 hours ago

Nasir Riley

1,884139

answered 4 hours ago

Nasir Riley

1,884139

add a commentÂ |Â

draft saved

draft discarded

draft saved

draft discarded

Post as a guest

Name

Search This Blog

Iyfjky