I have a bash script that checks the status of caps lock and num lock and then notifies the user whenever it's changed, if I run it from the terminal everything works fine but if I initiate it from systemd, the "systemctl status command" gives me the following error:
xset: unable to open display "" here is the source code:
#!/bin/bash source /usr/lib/kbled-notifier/delay.conf echo "kbled-notifier.service: ## Starting ##" | systemd-cat -p info #Validate the $delay parameter case $delay in ''|*[!0-9]*) delay=2000 ;; *) ;; esac nofity-it () { gdbus call --session \ --dest=org.freedesktop.Notifications \ --object-path=/org/freedesktop/Notifications \ --method=org.freedesktop.Notifications.Notify \ '' $IDSET "$icon" "$title" "$text" \ '[]' '{"urgency": <1>}' $delay } parse-id () { sed 's/(uint32 \([0-9]\+\),)/\1/g' } IDSET=0 wasoffc="true" wasoffn="true" while [ true ] do #Retrieves the current status of Caps Lock and Num Lock capstat=$( xset -q | sed -n 's/^.*Caps Lock:\s*\(\S*\).*$/\1/p' ) numstat=$( xset -q | sed -n 's/^.*Num Lock:\s*\(\S*\).*$/\1/p' ) if [[ $capstat == "on" ]] && [ ${wasoffc} = "true" ]; then title="Caps Lock" text="ON" icon="/usr/share/icons/kbled-indicator/capson.png" IDSET=$(nofity-it | parse-id) wasoffc="false" fi if [[ ${wasoffc} == "false" ]] && [[ $capstat == "off" ]]; then title="Caps Lock" text="OFF" icon="/usr/share/icons/kbled-indicator/capsoff.png" IDSET=$(nofity-it | parse-id) wasoffc="true" fi if [[ $numstat == "on" ]] && [[ ${wasoffn} == "true" ]]; then title="Num Lock" text="ON" icon="/usr/share/icons/kbled-indicator/numon.png" IDSET=$(nofity-it | parse-id) wasoffn="false" fi if [[ $numstat == "off" ]] && [[ ${wasoffn} == "false" ]]; then title="Num Lock" text="OFF" icon="/usr/share/icons/kbled-indicator/numoff.png" IDSET=$(nofity-it | parse-id) wasoffn="true" fi sleep 0.05 done this is the content of the service:
[Unit] Description=A Notifier For Status of Caps Lock & Num Lock [Service] Type=simple ExecStart=/usr/lib/kbled-notifier/kbled-notifier-daemon Restart=on-failure RestartSec=10 KillMode=process [Install] WantedBy=multi-user.target Related questions 6195 How do I get the directory where a Bash script is located from within the script itself? 4409 How do I check if a directory exists or not in a Bash shell script? 3083 How can I check if a program exists from a Bash script? Related questions 6195 How do I get the directory where a Bash script is located from within the script itself? 4409 How do I check if a directory exists or not in a Bash shell script? 3083 How can I check if a program exists from a Bash script? 3954 How do I tell if a file does not exist in Bash? 3516 How to concatenate string variables in Bash 2796 Extract filename and extension in Bash 3495 How to check if a string contains a substring in Bash 1952 Check existence of input argument in a Bash shell script 2878 How do I split a string on a delimiter in Bash? 2070 Looping through the content of a file in Bash Load 7 more related questions Show fewer related questions
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