#!/bin/bash
# Bail if other agents are alive in the state dir.
# $1 = this agent's pid file name (e.g. pid-12345)
# cwd = state dir
#
# Exit 0 = continue, exit 1 = bail

shopt -s nullglob

my_pid_file="$1"

for f in pid-*; do
    [[ $f != $my_pid_file ]] && exit 1
done

exit 0