Move backup function into script so that cron can access it.

files/scripts/backup_system.sh

@@ -0,0 +1,43 @@
+#/usr/bin/env bash
+
+## Variables ##
+
+EXTRA="$1"
+TAG="System"
+BACKUP_DIR="/srv/backup"
+BASENAME="$BACKUP_DIR/Backup"
+BACKUP="$BASENAME.`now`.$HOSTNAME.$TAG.zip"
+
+## Initialization ##
+
+echo "*** Creating Backup Directory ***"
+mkdir -pv $BACKUP_DIR
+chmod -Rv 755 $BACKUP_DIR
+chown -Rv root:root $BACKUP_DIR
+
+## Cleanup ##
+
+echo "*** Removing Old Backups ***"
+sh -c 'rm -fv "$BASENAME"*"$TAG"*'
+
+## Main
+
+echo "*** Creating backup at '$BACKUP' ***"
+sudo zip -rv "$BACKUP" \
+   /etc /var/{log,mail,spool} /srv /boot \
+   /usr/local/etc $EXTRA
+status="$?"
+
+if [[ "$status" != 0 ]]; then
+   echo "*** ERROR: Failed to create '$BACKUP', file may be incorrect. ***"
+fi
+
+if [[ -e "$BACKUP" ]]; then
+   ls -alh "$BACKUP"
+   echo "*** '$BACKUP' created successfully! ***"s
+else
+   echo "*** '$BACKUP' not found! ***"
+   exit 1
+fi
+
+exit 0