Search and Replace over multiple files

[Trans]

Just an FYI, this little one-line can come it quite handy:

ruby -pi -w -e 'gsub!(/search/, "replace")' *.rb

Use it to seach through your ruby script files doing a global search
and replace. Be careful though. Make a mistake using it and you'll be
wanting a backup!

T.

[Andrew Johnson]

Hence, specifying a backup extension is a good idea:

ruby -wpi.bak -e '...' xfiles

Now xfiles will first be backed up as xfiles.bak

andrew

[William James]

Bangless, with backup:

ruby -i.bak -pe 'gsub(/search/, "replace")' *.rb