Search in all directories

Question

I can't find out how to search in Vim in all directories with:

• grep
• ack
• findstring
• vimgrep

p.e. search "search-item" in all .txt files in c:\ and d:\ (including sub directories)

Can anyone help me?

Answer 1

Following works for me

:vimgrep /<search>/ {c:,d:}/**/*.txt

Answer 2

You can use grep as usually

:grep -R 'search-item' path1 path2

For more information see:

:h grep