Example Custom Commands

[joshuar]

Hey folks,

Use this topic to share examples of custom commands you have configured in the agent!

[joshuar]

Here is a example script that can create a swich in Home Assistant that turns on or off a service in the user's session. Requires systemd configured with the linger option (see the FAQ for how to enable lingering).

The script:

#!/bin/bash

if [ "$1" = "ON" ]; then
    systemctl --user start tmux
fi

if [ "$1" = "OFF" ]; then
    systemctl --user stop tmux
fi

if [ "$(systemctl --user is-active tmux)" = "active" ]; then
    echo ON
else
    echo OFF
fi

The configuration in commands.toml:

[[switch]]
name = "Toggle Tmux Service"
exec = "/path/to/toggle-tmux.sh"

[mikeshultz]

Here's one I just put together. It's a command to turn on/off an HDMI display with CEC.

#!/bin/env bash
# Usage:
#  - cec_swich.sh on   # Turn on the HDMI display
#  - cec_swich.sh off   # Turn on the HDMI display

set -e

# To find the device id, run `echo 'scan' | cec-client -s -d 1`
DEVICE="0"
ACTION="$(echo $1 | tr '[:upper:]' '[:lower:]')"

send () {
    echo "$1" | cec-client -s -d 1
}

STATE="$(send "pow $DEVICE" | grep "power status" | awk '{ print $3 }')"

if [[ "$ACTION" == "on" ]]; then
    echo "Turning display on..."
    if [[ "$STATE" != "$ACTION" ]]; then
        send "on $DEVICE" # turn on
        sleep 7 # cope with the device coming back form standby
    fi
    send "as" # set active source
elif [[ "$ACTION" == "off" ]]; then
    if [[ "$STATE" == "off" ]]; then
        echo "Display is already off."
    else
        echo "Turning display off..."
        send "standby $DEVICE" # go into standby
    fi
else
    echo "Unknown action"
    exit 1
fi

echo "$ACTION"