Marti’s Home

oneliner: copy file that has searched phrase

Because my server history sometimes changes, I have to write down my favourite oneliner - which copy every file from some which contains searched phrase/word.

for i in `egrep -li ’searched phrase’ *.eml`; do cp $i found/; done

if you just want to see those files, change cp to echo, like this

for i in `egrep -li ’searched phrase’ *.eml`; do echo $i; done

but this one - is made just by:

egrep -li ’searched phrase’ *.eml

Tags: grep, oneliner

remove all hashes (#) from config files

Nice tip - how to remove all hashes from config (or another files).

I know just two methods, but this one I find best:

grep -v ‘^#’ file > file.new

second one (this one overwrite the main file):

sed -e ‘/^#/d’ -i file

you can even use vim, but it will remove all lines with #, not starting from hash.

:g/pattern/d

Tags: grep, hash, hashes, Linux, remove, sed