Bashscripts.org

I want to write a script to remove some string in the line such as below

fileA: fileB:
bat rat
rat dog
cat car

I want to remove "rat" in file A and B how to write the script and delete the "rat" line

well it seems that "rat" appears on it's own in a line, therefore the following should work.

if you mean just the rat, not the line with rat

Haha, duplicate thread I posted this in the other one, but you can also use sed to remove the whole line:



Edit: Oh! and I mentioned this in the other thread as well, but if you use the "-i" switch with sed, it will edit the file "in place" so you don't have to create a new one:



Edit: I keep forgetting details... Anyway, this will find anything that matches "rat" and delete the whole line. This might not be desirable if you have words in there like "scrat" or "ratatouille". You'll want to play with regular expressions if you need to get that level of detail.

Have fun!
-Jeo

i removed the other post