usage() {
echo
- echo "Usage: $0 [-h|--help] [-t|--timeout <value>] [-f|--file] <data>"
+ echo "Usage: $0 [-h|--help] [-t|--timeout <value>] [-f|--file] [-p|--ping] <data>"
echo
echo " -h|--help: this usage help."
echo " -t|--timeout: timeout for operation in seconds."
echo " with one operation per line. If missing, it will be"
echo " a single operation string."
echo
+ echo " -p|--ping: Check the target process id."
+ echo " Returns 1 (dead) or 0 (alive)."
+ echo
echo " data: operation string or file with several operations."
echo
echo " For example:"
is_file=
timeout=$TIMEOUT__dflt
data=
+ ping=
while [ $# -gt 0 ]; do
case $1 in
shift
;;
+ -p|--ping)
+ ping=yes
+ ;;
+
*)
first=$(echo $1 | cut -c1)
[ "$first" = "-" ] && _exit "Unsupported script option: $1. Type '$SCR_BN -h' (or --help) to print the available options."
shift
done
- [ -z "$data" ] && _exit "Missing data value"
+ [ -z "$ping" -a -z "$data" ] && _exit "Missing data value"
}
# $1: pid to check
check_pid() {
kill -0 $1 2>/dev/null
- [ $? -ne 0 ] && _exit "Operation error: missing process with pid $1"
+ return $?
}
#############
[ "$1" = "" -o "$1" = "--help" -o "$1" = "-h" ] && usage
parse_arguments $@
+# Check pid:
+check_pid $PID
+res=$?
+[ -n "$ping" ] && exit $res
+[ $res -ne 0 ] && _exit "Operation error: missing process with pid $PID"
+
# Send operation:
if [ -n "$is_file" ]
then