Trigger for shell script message

[khurshid-alam]

I use logger or systemd-cat to send script output to systemd journald. For example a script named myscript99

#!/bin/bash
exec 1> >(logger -s -t $(basename $0)) 2>&1
echo "my pants are on fire!"

which can be filtered by journalctl using:

journalctl -t "myscript99"

I want to filter message both by identifier and message. My rule file looks like this:

[Rule]
trigger=~/.http_post.sh
[Filter]
SYSLOG_IDENTIFIER=myscript99
MESSAGE=*"fire"*

But it doesn't trigger anything. How does pattern matching work in this case?

[jjk-jacky]

You need to use ?= to enable pattern matching; So you probably want your
MESSAGE condition to be written as such:
MESSAGE?=fire

Also I think your trigger isn't gonna work because this isn't a shell,
there's no expansion, so you need to specify an actual path,
e.g: /home/user/.http_post.sh

[khurshid-alam]

Thanks. I will try. One other question: Is there any way I can pass MESSAGE and SYSLOG_IDENTIFIER t o my script (http_post.sh) as arguments?

[jjk-jacky]

Sure: use $MESSAGE and $SYSLOG_IDENTIFIER -- See man page for more.