Useful oneliner: check the memory usage of apache / httpd processes

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This is a handy one liner that reports the usage of the apache processes (apache2 on debian/ubunto or httpd in slackware, centos, etc)

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ps -ylC httpd | awk '{x += $8;y += 1} END {print "Apache Memory Usage (MB): "x/1024; print "Average Proccess Size (MB): "x/((y-1)*1024)}'