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I ran the command to show the status of rsyslog service. but I don't know the executable path

bu5hman
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Jass Chahal
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  • Use which command, or whatis command, in extreme cases locate command, desperate cases make me reach for find. – vonbrand Mar 17 '20 at 02:10

2 Answers2

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I am assuming the command you ran to see the status for rsyslog service is systemctl status rsyslog ( since you haven't mentioned anything specific)

systemctl status should also show you the PID and executable called under CGroup:

Also systemctl cat rsyslog is a quick way to show the rsyslog systemd service file. Check what's called in via "ExecStart="

Alok Anand
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There are various ways to find the path to executables. I believe you are looking for number three below but I thought I should mention more information.

1.You can use the find command to search the system. I personally like to run

find / -name *COMMAND* 2> /dev/null (replace COMMAND with actual command name) . This will search the entire system for the command and pass any errors to /dev/null so you do not see them. This usually gives too much information so I recommend one of the next options

2.You can use the which command to find the executable of almost any command. For example

 testUser@testMachine:~$ which cat 
 /bin/cat
 testUser@testMachine:~$ which ls 
 /bin/ls
 testUser@testMachine:~$ which rsyslogd 
 /usr/sbin/rsyslogd

3.If you want to see a running command/process and the options that were passed to it, then you can use ps -ef | grep COMMAND in order to see the process running and the options passed to it.

testUser@testMachine:~$ ps -ef | grep rsyslogd
syslog    1091     1  0 Mar03 ?        00:00:25 /usr/sbin/rsyslogd -n
testUser 11359 31985  0 00:05 pts/0    00:00:00 grep --color=auto rsyslogd
Gordster
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    See https://unix.stackexchange.com/q/85249/5132 and https://mywiki.wooledge.org/BashPitfalls#ps_ax_.7C_grep_gedit . Also note that grep catches the pattern anywhere in an entire line, even when one uses the "do not match my pattern" trick. – JdeBP Mar 16 '20 at 09:45