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#!/bin/sh
if [ $# -ne 2 ]; then
echo "Usage: kill_n_check.sh <pid file path> killed|restarted"
exit 0
fi
pid_path="$1"
expected_result="$2"
if [ -z "$pid_path" -o ! -r "$pid_path" ]; then
echo "Error: invalid PID path ($pid_path) or PID file does not exist."
exit 0
fi
if [ "$expected_result" != "killed" -a \
"$expected_result" != "restarted" ]; then
echo "Error: expected result must be either 'killed' or 'restarted'."
exit 0
fi
# echo "PID path: '$pid_path'"
original_pid=`cat "$pid_path"`
# echo "Original PID: $original_pid"
echo "Killing the process..."
kill -9 $original_pid
echo "Sleeping..."
sleep 3
new_pid=""
[ -r "$pid_path" ] && new_pid=`cat "$pid_path"`
# echo "New PID: $new_pid"
if [ "$expected_result" = "restarted" ]; then
if [ -z "$new_pid" ]; then
echo "Error: the process was killed."
exit 0
fi
if [ "$original_pid" -eq "$new_pid" ]; then
echo "Error: the process was not restarted."
exit 0
fi
echo "Success: the process was restarted."
exit 0
else # $expected_result = killed
if [ "$new_pid" -a "$new_pid" -ne "$original_pid" ]; then
echo "Error: the process was restarted."
exit 0
fi
echo "Success: the process was killed."
exit 0
fi
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