Search and replace in multiple files and save them with the same names - quickly and effectively!

for files in $(ls -A directory_name); do sed 's/search/replaced/g' $files > $ && mv $ $files; done;
Yeah, there are many ways to do that. Doing with sed by using a for loop is my favourite, because these are two basic things in all *nix environments. Sed by default does not allow to save the output in the same files so we'll use mv to do that in batch along with the sed.
Sample Output
No standard output on screen... just hit and boom. So, by the rule of the thumb first create a backup and then execute  or try to execute on some dummy files first.

By: bassu
2009-05-07 20:13:07

What Others Think

why not use sed -i ? for files in $(ls -A directory_name); do sed -i 's/search/replaced/g' $files; done;
thebillywayne · 587 weeks and 2 days ago
Good catch thebillywayne. Thanks.
bassu · 587 weeks and 2 days ago
You can also trigger sed through 'find's exec function: find . -name "*.php" -exec sed -i 's/old/new/g' {} \;
birnam · 587 weeks and 1 day ago
there's a command called replace that does this: replace 'word' 'another word' -- * From the man page: NAME replace - a string-replacement utility SYNOPSIS replace arguments DESCRIPTION The replace utility program changes strings in place in files or on the standard input. Invoke replace in one of the following ways: replace from to [from to] ... -- file [file] ... replace from to [from to] ... < file
bunedoggle · 587 weeks and 1 day ago
the 'replace' program that bunedoggle mentioned is part of the mysql-server-5.0 package, at least on my debian/ubuntu system.
bwoodacre · 586 weeks and 6 days ago
"sed -i" isn't available on every UNIX system, as it's a GNU extension only.
realist · 572 weeks and 3 days ago
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samprabhu · 11 weeks and 2 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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