remove certain tag in files under linux?

Question

Hi,

I found out that someone spyware on my server and the spyware infected all the files. Infected files have tag at the bottom of the file.

is there a way to loop all the files and remove only certain tag under linux?

Answer 1

You can use grep to find files containing the tag, and then sed (or a grep -v) to remove it.

Answer 2

sed -i 's/tag//g' file*

or

sed -i '/tag/d' file*