what command to shoot ?

Volcano · 04-01-2010, 02:54 AM

I need a Linux command.

My objective is to find exception/errors in log file.

As of now, I just do a 'tail -200f ms01.log' ... this just prints the last 200 lines from the log files.

I'm not happy with my command. Can we make it smarter . I want to print only the exception stacks from my log file.

what command to shoot ?

GrapefruiTgirl · 04-01-2010, 03:00 AM

Code:

tail -200f ms01.log | grep 'error'

Replace 'error' with the term you want to show lines containing. If more than one term is required, use:

grep 'term1\|term2\|term3'

Note: this is only a simple grep -- if you need to filter for strange words or regular expressions, you will need a heftier grep command.

Also: I believe you meant to write "Which command to execute", not "Which command to shoot"

Sasha

Volcano · 04-01-2010, 03:16 AM

thanks for the correction . thanks for the help

prpednek · 04-01-2010, 03:23 AM

Quote:

Originally Posted by Volcano

thanks for the correction . thanks for the help

Hi,
tail -200f <LOGFILE> | grep -i '<PATTERN>'

This command will tail the particular log and output the line with the matching pattern ignoring case.

Hope this helps.

Cheers,
Prasad.

Volcano · 04-01-2010, 05:21 AM

Glad to know this ...thanks