Removing all non-ascii characters from a workflow (file)

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How would I remove all non-ascii characters from one file? Would there be a specific command to perform this?




grep --colour='auto' -P -n'[^x00-x7]' /usr/local/...




I believe this finds the characters within the workflow, but how would I remove all the instances of the characters in question?










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    up vote
    2
    down vote

    favorite












    How would I remove all non-ascii characters from one file? Would there be a specific command to perform this?




    grep --colour='auto' -P -n'[^x00-x7]' /usr/local/...




    I believe this finds the characters within the workflow, but how would I remove all the instances of the characters in question?










    share|improve this question























      up vote
      2
      down vote

      favorite









      up vote
      2
      down vote

      favorite











      How would I remove all non-ascii characters from one file? Would there be a specific command to perform this?




      grep --colour='auto' -P -n'[^x00-x7]' /usr/local/...




      I believe this finds the characters within the workflow, but how would I remove all the instances of the characters in question?










      share|improve this question













      How would I remove all non-ascii characters from one file? Would there be a specific command to perform this?




      grep --colour='auto' -P -n'[^x00-x7]' /usr/local/...




      I believe this finds the characters within the workflow, but how would I remove all the instances of the characters in question?







      command-line linux-kernel






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      asked 40 mins ago









      Mizole Ni

      115




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          2 Answers
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          ASCII characters are characters in the range from 0 to 177 (octal) inclusively.



          To delete characters outside of this range in a file, use



          tr -dc '-177' <file >newfile


          tr is a utility that works on single characters, either substituting them with other single characters (transliteration), deleting them, or deleting runs of the same character.



          The command above would read from file and write the modified content to newfile. The -d option to tr makes the utility delete characters (instead of transliterating them), and -c makes it consider characters outside the given interval (instead of inside).




          To replace the original file with the modified one, use



          tr -dc '-177' <file >newfile && mv newfile file


          This renames the new file to the name of the old file after tr has completed successfully. If tr does not complete successfully, either because it could not read the original file or not write to the new file, the original file will be left unchanged.






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            With perl



            perl -pi -e 's/[^[:ascii:]]/ /g'





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              up vote
              5
              down vote













              ASCII characters are characters in the range from 0 to 177 (octal) inclusively.



              To delete characters outside of this range in a file, use



              tr -dc '-177' <file >newfile


              tr is a utility that works on single characters, either substituting them with other single characters (transliteration), deleting them, or deleting runs of the same character.



              The command above would read from file and write the modified content to newfile. The -d option to tr makes the utility delete characters (instead of transliterating them), and -c makes it consider characters outside the given interval (instead of inside).




              To replace the original file with the modified one, use



              tr -dc '-177' <file >newfile && mv newfile file


              This renames the new file to the name of the old file after tr has completed successfully. If tr does not complete successfully, either because it could not read the original file or not write to the new file, the original file will be left unchanged.






              share|improve this answer


























                up vote
                5
                down vote













                ASCII characters are characters in the range from 0 to 177 (octal) inclusively.



                To delete characters outside of this range in a file, use



                tr -dc '-177' <file >newfile


                tr is a utility that works on single characters, either substituting them with other single characters (transliteration), deleting them, or deleting runs of the same character.



                The command above would read from file and write the modified content to newfile. The -d option to tr makes the utility delete characters (instead of transliterating them), and -c makes it consider characters outside the given interval (instead of inside).




                To replace the original file with the modified one, use



                tr -dc '-177' <file >newfile && mv newfile file


                This renames the new file to the name of the old file after tr has completed successfully. If tr does not complete successfully, either because it could not read the original file or not write to the new file, the original file will be left unchanged.






                share|improve this answer
























                  up vote
                  5
                  down vote










                  up vote
                  5
                  down vote









                  ASCII characters are characters in the range from 0 to 177 (octal) inclusively.



                  To delete characters outside of this range in a file, use



                  tr -dc '-177' <file >newfile


                  tr is a utility that works on single characters, either substituting them with other single characters (transliteration), deleting them, or deleting runs of the same character.



                  The command above would read from file and write the modified content to newfile. The -d option to tr makes the utility delete characters (instead of transliterating them), and -c makes it consider characters outside the given interval (instead of inside).




                  To replace the original file with the modified one, use



                  tr -dc '-177' <file >newfile && mv newfile file


                  This renames the new file to the name of the old file after tr has completed successfully. If tr does not complete successfully, either because it could not read the original file or not write to the new file, the original file will be left unchanged.






                  share|improve this answer














                  ASCII characters are characters in the range from 0 to 177 (octal) inclusively.



                  To delete characters outside of this range in a file, use



                  tr -dc '-177' <file >newfile


                  tr is a utility that works on single characters, either substituting them with other single characters (transliteration), deleting them, or deleting runs of the same character.



                  The command above would read from file and write the modified content to newfile. The -d option to tr makes the utility delete characters (instead of transliterating them), and -c makes it consider characters outside the given interval (instead of inside).




                  To replace the original file with the modified one, use



                  tr -dc '-177' <file >newfile && mv newfile file


                  This renames the new file to the name of the old file after tr has completed successfully. If tr does not complete successfully, either because it could not read the original file or not write to the new file, the original file will be left unchanged.







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited 6 mins ago

























                  answered 34 mins ago









                  Kusalananda

                  109k14213336




                  109k14213336






















                      up vote
                      3
                      down vote













                      With perl



                      perl -pi -e 's/[^[:ascii:]]/ /g'





                      share|improve this answer


























                        up vote
                        3
                        down vote













                        With perl



                        perl -pi -e 's/[^[:ascii:]]/ /g'





                        share|improve this answer
























                          up vote
                          3
                          down vote










                          up vote
                          3
                          down vote









                          With perl



                          perl -pi -e 's/[^[:ascii:]]/ /g'





                          share|improve this answer














                          With perl



                          perl -pi -e 's/[^[:ascii:]]/ /g'






                          share|improve this answer














                          share|improve this answer



                          share|improve this answer








                          edited 18 mins ago









                          Kusalananda

                          109k14213336




                          109k14213336










                          answered 18 mins ago









                          Goro

                          9,24464487




                          9,24464487



























                               

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