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Top Forums Shell Programming and Scripting verify if a process exists (ps) Post 302119529 by melanie_pfefer on Wednesday 30th of May 2007 11:40:53 AM
Old 05-30-2007
verify if a process exists (ps)

hi

I want to verify that a process exists. if the process exists, then it means the service is up.

ps -ef | grep monito
returns an entry if the service is up.

how to translate that in a shell script??

many thanks
 

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SYSTEMD-RC-LOCAL-GENERATOR(8)				    systemd-rc-local-generator				     SYSTEMD-RC-LOCAL-GENERATOR(8)

NAME
systemd-rc-local-generator - Compatibility generator for starting /etc/rc.local and /usr/sbin/halt.local during boot and shutdown SYNOPSIS
/lib/systemd/system-generators/systemd-rc-local-generator DESCRIPTION
systemd-rc-local-generator is a generator that checks whether /etc/rc.local exists and is executable, and if it is pulls the rc-local.service unit into the boot process. This unit is responsible for running this script during late boot. Note that the script will be run with slightly different semantics than the original System V version, which was run "last" in the boot process, which is a concept that does not translate to systemd. The script is run after network.target, but in parallel with most other regular system services. systemd-rc-local-generator also checks whether /usr/sbin/halt.local exists and is executable, and if it is pulls the halt-local.service unit into the shutdown process. This unit is responsible for running this script during later shutdown. Support for both /etc/rc.local and /usr/sbin/halt.local is provided for compatibility with specific System V systems only. However, it is strongly recommended to avoid making use of these scripts today, and instead provide proper unit files with appropriate dependencies for any scripts to run during the boot or shutdown processes. systemd-rc-local-generator implements systemd.generator(7). SEE ALSO
systemd(1), systemctl(1) systemd 237 SYSTEMD-RC-LOCAL-GENERATOR(8)
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