#!/bin/sh
#
# trigger-rcmp: Trigger remote commands
-# Copyright (c)2014-2015 Alexander Barton (alex@barton.de)
+# Copyright (c)2014-2016 Alexander Barton (alex@barton.de)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# Please read the file COPYING, README and AUTHORS for more information.
#
-NAME="`basename "$0"`"
+NAME=$(basename "$0")
RCMD_D="/usr/local/etc/rcmd.d"
PATH="$PATH:/usr/local/sbin:/usr/sbin"
BOOT_DELAY="1m"
SHUTDOWN_TIME="+10"
+ # Read in job/configuration file, but ignore shellcheck(1) warnings:
+ # shellcheck disable=1090
. "$cnf"
if [ $? -ne 0 ]; then
return 2
fi
- local NAME="$NAME($1)"
+ NAME="$NAME($1)"
echo "$NAME: Checking system \"$SYSTEM\" ..."
fping -c1 -q "$SYSTEM" 2>/dev/null
fi
echo "$NAME: \"$SYSTEM\" seems to be down, wake it up ..."
- etherwake -b -i "$IFACE" `echo "$SYSTEM" | cut -d'.' -f1`
+ etherwake -b -i "$IFACE" "$(echo "$SYSTEM" | cut -d'.' -f1)"
if [ $? -ne 0 ]; then
echo "$NAME: Failed to wake \"$SYSTEM\"!" >&2
return 3
fi
echo "$NAME: Waiting for \"$SYSTEM\" to respond ..."
- for i in `seq 1 $TIMEOUT`; do
+ for i in $(seq 1 $TIMEOUT); do
fping -c1 -q "$SYSTEM" 2>/dev/null
[ $? -ne 0 ] || break
sleep 1s
rsys_was_running=1
fi
- for i in `seq 1 $SSH_CHECKS`; do
+ for i in $(seq 1 $SSH_CHECKS); do
echo "$NAME: Checking SSH connection ($i/$SSH_CHECKS) ..."
ssh -q "$SYSTEM" true >/dev/null 2>&1 && break
echo "$NAME: SSH on \"$SYSTEM\" not ready. Waiting ..."
echo "$NAME: Calling \"$CMD\" on \"$SYSTEM\" ..."
echo
+ # shellcheck disable=2029
ssh -q "$SYSTEM" "$CMD" </dev/null ; r=$?
echo
sleep 2
if [ "$rsys_was_running" -eq 0 ]; then
- rsys_users=`ssh -q "$SYSTEM" w | tail -n +3 | wc -l`
+ rsys_users=$(ssh -q "$SYSTEM" w | tail -n +3 | wc -l)
if [ "$rsys_users" = "0" ]; then
echo "$NAME: Power off \"$SYSTEM\" again ..."
+ # shellcheck disable=2029
ssh -q "$SYSTEM" "sync; shutdown -hP $SHUTDOWN_TIME" >/dev/null
if [ $? -ne 0 ]; then
echo "$NAME: Failed to power off \"$SYSTEM\"!" >&2
fi
else
echo "$NAME: Not shutting down \"$SYSTEM\", \c"
- [ $rsys_users -eq 1 ] \
+ [ "$rsys_users" -eq 1 ] \
&& echo "There is 1 user logged in!" \
|| echo "There are $rsys_users users logged in!"
fi
# Check required tools
for t in fping ssh etherwake; do
- type "$t" >/dev/null 2>&1
- if [ $? -ne 0 ]; then
+ if ! command -v "$t" >/dev/null 2>&1; then
echo "$NAME: Required tool \"$t\" missing, aborting!"
exit 3
fi
echo "$NAME: Can't read \"$cnf\"!"
r=1
else
- echo "$NAME: Working on \"$1\" - `date "+%Y-%m-%d %H:%M:%S"`"
+ echo "$NAME: Working on \"$1\" - $(date "+%Y-%m-%d %H:%M:%S")"
do_rcmd "$1" ; r=$?
- echo "$NAME: Done ($r) - `date "+%Y-%m-%d %H:%M:%S"`"
+ echo "$NAME: Done ($r) - $(date "+%Y-%m-%d %H:%M:%S")"
fi
[ $r -ne 0 ] && result=1
shift