topic simple grep query in Operating System - HP-UX

simple grep query

HP System Handle Owner — Wed, 03 Aug 2005 07:57:20 GMT

Hi there

I've got two processes running both concerning TSM.

One process is

root 659500 1 0 Aug 01 - 0:00 /usr/tivoli/tsm/client/ba/bin/d
smcad -optfile=/file1

The other is

root 659500 1 0 Aug 01 - 0:00 /usr/tivoli/tsm/client/ba/bin/d
smcad.shared -optfile=/file1

I want to be able to grep for 'dsmcad' for the first one, or 'dsmcad.' for the second one

i.e. How to run grep and have them pick up ONE of the entries only

ps -ef | grep "dsmcad." picks up both

Thanks in advance

Russ

Re: simple grep query

Ralph Grothe — Wed, 03 Aug 2005 08:05:22 GMT

Try

UNIX95= ps -o pid= -C dsmcad

or

UNIX95= ps -o pid= -C dsmcad.shared

Re: simple grep query

Simon Hargrave — Wed, 03 Aug 2005 08:07:45 GMT

Use

ps -ef | grep "dsmcad\."

You need to escape the "." since in regular expressions . means "any single character" so it is matchnig the space in the "smcad " line. The escape means look literally for the "."

Re: simple grep query

Andrew Merritt_2 — Wed, 03 Aug 2005 08:08:49 GMT

ps -ef | grep 'dsmcad[^.]'
will match the first
and
ps -ef | grep 'dsmcad\.'
will match the second

Re: simple grep query

Pedro Cirne — Wed, 03 Aug 2005 08:12:48 GMT

Hi,

Try:

ps -ef|grep "dsmcad " don't forget the blank space .-)

and

ps -ef|grep "dmscad."

Enjoy :)

Pedro

Re: simple grep query

Bill Hassell — Wed, 03 Aug 2005 11:15:42 GMT

As you have seen, grep is a very poor tool to use with ps, especially because ps has exact match capability built-in. You use the -C option for an exact match to the process name. But the -C option (and -H and -o, etc) are not available unless you enable (temporarily) the XPG4 behavior using UNIX95. This will give an exact match for either process:

UNIX95= ps -fC dsmcad
UNIX95= ps -fC dsmcad.shared

Although the UNIX95= looks strange, this is how you define a temporary variable for the name process. Don't set or export UNIX95 in your shell, just use it on the command line as shown.