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LeafWeb/Core/Remote/piscal_manager.sh
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#~/bin/bash
# piscal manager script
usage="$(basename "$0") [-h] -d directory_name -f input_filename -- script to manage Piscal
where:
-h show this help text
-d working directory name
-o input filename
-s job status"
# http://stackoverflow.com/a/14203146/99492
# http://wiki.bash-hackers.org/howto/getopts_tutorial
# Initialize variables:
base_directory="/home/poprhythm/LeafWeb"
directory_name=""
input_filename=""
get_status=false
pid_filename="piscal.pid"
out_filename="piscal.out"
while getopts "hd:f:s" opt; do
#echo "$opt = $OPTARG"
case "$opt" in
h )
echo "$usage"
exit
;;
d )
directory_name=$OPTARG
;;
f )
input_filename=$OPTARG
;;
s )
get_status=true
;;
\?) printf "illegal option: -%s\n" "$OPTARG" >&2
echo "$usage" >&2
exit 1
;;
esac
done
if [ -z "$directory_name" ]; then
echo "directory name required (-d)"
exit 1
fi
if [ ! -d "$base_directory/$directory_name" ]; then
echo "directory $base_directory/$directory_name not found"
exit 1
fi
if [ "$get_status" = false ]; then
if [ -z "$input_filename" ]; then
echo "input filename required (-f)"
exit 1
fi
if [ ! -f "$base_directory/$directory_name/$input_filename" ]; then
echo "input filename $base_directory/$directory_name/$input_filename not found"
exit 1
fi
fi
if [ "$get_status" = true ]; then
pid_path="$base_directory/$directory_name/$pid_filename"
# if the pid doesn't exist, then process never started
if [ ! -f "$pid_path" ]; then
echo "no pid file found"
exit 1
fi
pid=$(head -n 1 $pid_path)
# if the pid exists, check the process status using ps
if ps -p $pid > /dev/null; then
# if it is in ps, then it's still running
echo running
else
# otherwise, it is complete, check the output for success/error
# TODO: examine output for errors, etc
echo complete
fi
else
command="sleep 100s"
nohup ${command} > $base_directory/$directory_name/$out_filename 2>&1 &
# write the PID to a temp file to check for completion later
echo $! > $base_directory/$directory_name/$pid_filename
fi