bash script to remove everything in a line before a space

tallmtt · 12-28-2008, 07:17 PM

I have some files that need mass editing. The problem is that some lines are numbered and others are not - I want none of them to be numbered.

Example:
File-1:
blah
blah
blah
blah
23 blah
24 blah
25 blah
blah
blah
13 blah
2 blah

What I want:
File-2:
blah
blah
blah
blah
blah
blah
blah
blah
blah
blah
blah
blah

I am not good with sed or awk but have a hunch this is where they shine. I would like to run is:

cat File-1 | {code to remove everything before a space in each line} >> File-2

Any idea how to write the {code} part?

pixellany · 12-28-2008, 07:29 PM

Quote:

I am not good with sed or awk

Do you want to be? Really good tutorials here: http://www.grymoire.com/Unix

Remove everything up to and including the first space:

Code:

sed 's/[^ ]* //' oldfile > newfile

tallmtt · 12-28-2008, 07:40 PM

You rock! Very quick response - worked flawlessly!

Excellent link also after my quick review - I do want to become better at both sed and awk - they seem to be able to do so much for everyone who knows them.

Thank you for both the response and the link.