shell-config/scripts/run-once

#!/bin/sh

#### HELP MESSAGE ##############################################
hlp='Usage: run-once PROGRAM [ARGS ...]
Start PROGRAM if it is not already running.'

if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
    echo "$hlp"
    exit 0
fi
################################################################

if [[ -z $(pgrep -U $(id --user) "^$1$") ]]; then
    "$@"
else
    echo "$1 is already running"
fi