Tagged Questions

3
votes
2answers
762 views

How Do I fetch only the numbers in grep?

I have file like this : other lines . . . blah blah blah (:34) I wish to find the occurrence of numbers in the above file. I came up with : grep [0-9] filename But that is printing the ...
0
votes
1answer
204 views

Attempting to GREP details of a Java error

I'm running Ubuntu 11 and I'm having some issues with grep. I have a shell script (see below) which essentially checks if a certain Java program of mine is running, if not it runs it. That part works ...
1
vote
1answer
301 views

How do I parse emails with Mutt?

How would I go about parsing new message subject lines non-interactively using Mutt? Mutt is already configured and fetches mail from our Exchange server. What I'd like is for an action to be ...
1
vote
2answers
970 views

How to use text extracted from the “grep” command as an argument in a bash script?

I have a file called "krylov_methods", which has text like this: cg - preconditioned cgne - normal equations nash - cg subject to constraint stcg - another method for constraints gmres - ...