topic Re: grep in Operating System - HP-UX

grep

navin — Tue, 22 Jul 2003 21:32:41 GMT

helo,
i'm using grep to find out a string from a file say "SUNG".but it grep's all entries with "SUNG".Please help to grep the exact string.
Thanks in Advance.

Re: grep

Dave La Mar — Tue, 22 Jul 2003 21:54:34 GMT

Navin -

grep 'SUNG' file_name | grep -v 'SUNGA' | grep -v 'SUNGB'

etc, etc for the other variations of SUNG

Best of luck.

Regards,
dl

Re: grep

Tom Ward_1 — Tue, 22 Jul 2003 21:55:31 GMT

grep " SUNG " whatever
or grep -e "^SUNG " -e " SUNG " -e " SUNG$"

Re: grep

Con O'Kelly — Tue, 22 Jul 2003 22:19:59 GMT

Hi Navin

Unfortunately grep is not great at matching exact syntax like you want.
For example:
# grep SUNG
This will find all lines with SUNG string, including SUNG, SUNGD, GSUNG ffSUNGfg etc etc.

You need to try and find someway to differentiate the string you are searching for.
Examples:
grep "^SUNG"
All lines that start with SUNG
grep " SUNG "
All lines that have SUNG preceded & followed by a space.
grep -x "SUNG"
All lines that only have SUNG in the line, nothing else.

Hope this might give you some ideas.
If you post the exact string you're trying to match, someone may be able to offer you a solution.

Cheers
Con

Re: grep

navin — Tue, 22 Jul 2003 22:22:41 GMT

Thanks .It worked.