#kill -HUP `cat /var/run/syslogd.pid`
Its the same as
#service rsyslog restart
But in a different way
There are another signals, each one can be represented by a number, here is a small list of signals available:
- HUP = 1
- KILL = 9
- TERM = 15
I realized that it did not change the PID of the process and I got an interesting comment about that saying that rsyslog v5 does not support HUP anymore.

July 25, 2009 at 8:46 am |
Hi,
please note that using HUP for restart is deprecated and has a number of drawbacks. Please see here:
http://www.rsyslog.com/doc-v4compatibility.html
Rsyslog v5 does no longer support that mode.
Rainer