pkill verbose?

Xeratul · 08-10-2012, 11:42 PM

Hi,

Pkill usually by default outputs nothing. pkill -v bblabla crashes my X11.

Would you know a solution that says bit more than no output on exit (man exit read already)?

I have few ideas but an ideally rock-stating solution would be welcome.

thanks

vharishankar · 08-10-2012, 11:50 PM

From the pkill manual the -v option is "inverse" of the option, meaning everything other than the task is killed. It's not verbose.

From the man pages:

Code:

       -v, --inverse
              Negates  the  matching.   This option usually used in pgrep con‐
              text.  In pkill context the short option is  disabled  to  avoid
              accidental usage of the option.

vharishankar · 08-10-2012, 11:56 PM

You could use killall -v instead of pkill too.

Xeratul · 08-11-2012, 12:12 AM

Quote:

Originally Posted by vharishankar

You could use killall -v instead of pkill too.

on mini servers, pkill is surely installed. killall not so much .

Ygrex · 08-18-2012, 02:38 PM

probably you'll find strace useful:

Code:

$ LC_ALL=C ; for i in $(seq 4) ; do sleep 3600 & true ; done ; strace -fe kill pkill sleep
[1] 14049
[2] 14050
[3] 14051
[4] 14052
kill(14049, SIGTERM)                    = 0
kill(14050, SIGTERM)                    = 0
kill(14051, SIGTERM)                    = 0
kill(14052, SIGTERM)                    = 0
[1]   Terminated              sleep 3600
[2]   Terminated              sleep 3600
[3]-  Terminated              sleep 3600
[4]+  Terminated              sleep 3600

evo2 · 08-19-2012, 08:33 PM

Hi,

as already pointed out -v does not mean verbose. Regarding how to get information from pkill, you should look at the exit status. Eg;

Code:

pkill foo ; echo $?

From the pkill man page

Code:

EXIT STATUS
       0      One or more processes matched the criteria.
       1      No processes matched.
       2      Syntax error in the command line.
       3      Fatal error: out of memory etc.

Evo2.

Xeratul · 08-25-2012, 09:02 AM

maybe it could be cool to add to the deb of pkill a bash/sh code that does output something.

Sthg like /sbin/hpkill, h'' like htop/top, that would output a similar output as killall.