powersync-plugins/commandlauncher

Application and script launcher

This plugin allows you to execute system commands and start bash scripts.

Application launcher

The application launcher allows you to call bash applications or commands with parameters from nymea. Once, the application started, the running state will change to true, if the application is finished, the running state will change to false.

Example

An example command could be espeak. (apt-get install espeak)

espeak -v en "Chuck Norris is using nymea"

Bash script launcher

The bashscript launcher allows you to start a bash script (with parameters) from nymea. Once, the script is running, the running state will change to true, if the application is finished, the running state will change to false.

Example

An example for a very useful script could be a backup scrip like following backup.sh script.

#!/bin/sh
# Directories to backup...
backup_files="/home /etc /root /opt /var/www /var/lib/jenkins"

# Destination of the backup...
dest="/mnt/backup"

# Create archive filename...
day=$(date +%Y%m%d)
hostname="nymea.io"
archive_file="$day-$hostname.tgz"

# Print start status message...
echo "Backing up $backup_files to $dest/$archive_file"
date
echo

# Backup the files using tar.
tar czf $dest/$archive_file $backup_files

echo
echo "Backup finished"
date
echo "==========================="
echo "  DONE, have a nice day!   "
echo "==========================="

To make the script executable use following command:

chmod +x backup.sh