[olug] Unix Tip: IDENTIFY A PROCESSES

Vincent vincentr at cox.net
Wed Mar 26 22:53:58 UTC 2003


An often overlooked feature of fuser is to get the pid which has bound a port:
[-- at --- ~/]$ fuser -n tcp 25
25/tcp:               4466
[-- at --- ~/]$ ps -p `fuser -n tcp 25 | awk '{print $2}'` fu
USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
root      4466  0.0  0.0  2448 1228 ?        S    Mar16   0:53 sendmail: accepting connections





----- Original Message ----- 

From: "Unix Guru Universe" <listserv at ugu.com>
To: <olug at olug.org>
Sent: Wednesday, March 26, 2003 1:23 PM
Subject: [olug] Unix Tip: IDENTIFY A PROCESSES


> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> 
>       UNIX GURU UNIVERSE 
>          UNIX HOT TIP
> 
> Unix Tip 1911 - March 26, 2003
> 
>     http://www.ugu.com/sui/ugu/show?tip.today
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> 
> 
> IDENTIFY A PROCESSES
> 
> The command fuser is very 
> handy when you want to know 
> which processes or users 
> have a file open. Its basic 
> syntax is:
> 
> /etc/fuser -u /usr/my_application/foo
> 
> You must enter the file's full 
> path name, as shown above.
> 
> The fuser command is located 
> under the /etc directory on HP-UX,
> AIX and SCO flavors. You must 
> login as root to use it.
> 
> Its output is a raw list of 
> processes id numbers and users login
> names.
> 
> Please refer to your Unix man pages 
> to find more about this useful command.
> 
> 
> This tip generously supported by: tinaco110 at hotmail.com
> 
> 
> 
> 
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