remove exact phrase from multiple files

grep -r "mystring" . |uniq | cut -d: -f1 | xargs sed -i "s/mystring//"
Linux : these script enable you to edit multiple files and remove exact phrase from multiple files

2009-04-09 12:49:01

What Others Think

Simpler (and better): grep -Zlr "mystring" | xargs -0 sed -i "s/mystring//" grep: "-l" (lower case L) only prints the filenames "-Z" separates the filenames with a NUL so xargs can deal with filenames with spaces in. xargs: "-0" (zero) use a list separated by NULs
flatcap · 573 weeks and 3 days ago
You can do the same thing much more elegantly using just sed. As in: sed -i 's/mystring//' * Note, this will only remove the first occurrence of 'mystring' from each file. If you want to remove all occurences of 'mystring' use: sed -i 's/mystring//g' * where 'g' stands for global replace. You could even make it create a backup of the original using: sed -i.bak 's/mystring//g' *
Highwayman · 573 weeks and 3 days ago
@flatcap my solution also works with files that have spaces in their name.
Highwayman · 573 weeks and 3 days ago
@Highwayman, you missed the fact that original poster and flatcap's commands are recursive, ie operate on files in the current directory AND in subdirectories below. Also your comment on the use or absence of the sed g flag is incorrect -- without 'g' the first occurrence of 'mystring' on each LINE is removed, not just the first occurence in each file, as you state.
daithif · 573 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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