Monitor server swap and restart PHP shell script _linux Shell

Compromise, write a script to monitor swap bar, put in the crontab inside, 2 hours to execute once, the world is quiet, no annoying alarm text

Copy Code code as follows:

#!/bin/bash
function usage
{
echo "Usage: $ $"
echo "e.g $1500"
Exit
}
If [$#-lt 1];then
Usage
Fi
Typeset-i Nowswap Limitswap
Limitswap=$1
nowswap=$ (free-m|grep "Swap" |sed-e "s/\ (. *\) \:\ (. *\)/\2/g" |awk ' {print $} ')
If [$limitSwap-lt $nowSwap];then
While [1]
Todo
IF/ETC/INIT.D/PHP5-FPM Restart|grep-c fail
Then echo "[$ (date +%y/%m/%d0-%h:%m)]restart PHP failed"
Else
echo [$ (date +%y/%m/%d-%h:%m)]restart php successful! "
Break
Fi
Done
Fi

Note: if/etc/init.d/php5-fpm restart|grep-c fail This sentence in the middle of the command replaced by your own can