LinuxQuestions.org - Substitute a string :)

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alaios

06-11-2005 10:31 PM

Substitute a string :)

Good morning gentlemen /... i have some text files and i want to open them and substitute a specific string with one another.... What should i do?
Thx a lot

crabboy

06-12-2005 01:31 AM

This will find and replace all instances of 'LQ' with 'Linux Questions' in all .txt files in the current directory.

Code:

for i in `ls *.txt`; do

  cat $i | sed 's/LQ/Linux Questions/g' > $i.new

  chmod 777 $i

  mv $i.new $i

done

freegianghu

06-12-2005 04:37 AM

With recently sed, you could try:

Code:

for file in `ls *.txt`; do

  sed -i 's/String one/eno gnitS/g' $file

done

ddaas

06-12-2005 04:55 AM

Or direct in vi:

1. open the file with vi ( #vi file-name )
2. Go to "Last Line Mode" (press : )
3. %s/string_to_replace/string_to_replace_with/g

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