check process status and start if it is not running using cron bash

[root@mx12 /]# cat /opt/checkclam.sh
#!/bin/bash
if ! pgrep clamd > /dev/null;
then
/etc/init.d/clamd restart > /dev/null;
else
echo "OK `date +%T\ %F`" >> /program.log; #'\ ' is for space use %t for tab
fi

[root@mx12 /]# crontab -l
*/3 * * * * /opt/checkclam.sh 

== == =====  ===== = =  =  === === ====    == =  ========= =

#!/bin/bash

# Check if gedit is running
if ps aux | grep "[h]ttdp" > /dev/null
then
    echo "Running"
else
    echo "Stopped"
fi

This script is just checking to see if the program "httpd" is running.
The square brackets are useful to avoid the output of the grep command. Without this the conditional will always return true, because the grep command start a process with the same content of the searched string.
 = = = =  = = = = = = = = =Check SELINUX and turn it to permissive  = = = = = = = = = = = = = =
#!/bin/bash
var1=`getenforce`
if [ "$var1" == "Permissive" ]
then
    :                             # the " : " colon will do nothing or NO operation
else
/usr/sbin/setenforce 0
fi

============

[root@mailvm /]# cat selinuxcheck 
#!/bin/bash
var1=`getenforce`
#if [ "$var1" == "Permissive" ] 
#then  
#    :
#else 
#/usr/sbin/setenforce 0 
#fi
if [ "$var1" == "Enforcing" ]
then
echo "enforced mode"
printf "Now changing to Permissive"
sleep 1
printf "."
sleep 1
printf "."
/usr/sbin/setenforce 0
else
echo "permissive mode [OK]"  
fi
echo

=============================================================================