Clear orphaned waagent PID files - Azure WaAgent on Linux related

clean_waagent_pid_files.sh

#!/bin/bash

#get the running waagent PID
waagentpid=$(ps axf | grep waagent | grep -v grep | awk '{print $1}')  	

#all waagent.pid files in /var/run/ directory
dir=/var/run/*waagent.pid 						

#for each file in $dir
for f in $dir 								
do
    #assign to var $pid the value in the file
    pid=$(< "$f")  							
	if [ "$waagentpid" -eq "$pid" ]
		then 
			echo "Waagent is running on PID $pid. Keeping $f intact."
		else 
			echo "No process running on PID $pid. Deleting the $f file!"
			#delete the file coresponding to the value of $f
			rm -f $f  					
	fi
done