Shell script for viewing Linux memory usage

In Linux, the/proc/$PID/status file provides the usage of the process resources (memory, stack, semaphore, child parent process), although Linux provides a lot of commands to view memory, but it's all about the overall usage and cannot view the memory usage of a single process.

This article provides you with this script, by looking at the Vmrss field in the status file to see the memory of the system or process used, the need for a friend may refer to.

Copy code:

#! /bin/bash

Echo-n "Pidname" >/ROOT/SCRIPT/PID.F

echo "Memery" >>/ROOT/SCRIPT/PID.F

pidpath=/proc/

Totle=0

CD $PIDPATH

doc= ' ls '

For DocName in $DOC

Todo

If [-D $DOCNAME]; Then

CD $DOCNAME

If [F Status];then

Memery= ' grep vmrss status | Awk-f ': ' {print $} ' | awk ' {print '} '

Pidname= ' grep Name status | Awk-f ': ' {print $} '

if [$MEMERY]; Then

Echo-n $PIDNAME >>/ROOT/SCRIPT/PID.F

Echo-n "" >>/ROOT/SCRIPT/PID.F

echo $MEMERY >>/ROOT/SCRIPT/PID.F

totle= ' expr $TOTLE + $MEMERY '

Cd..

Else

Cd..

Fi

Else

Cd..

Fi

Fi

Done

totle= ' expr $TOTLE/1024 '

echo "Totle userd: $TOTLE MB" >>/ROOT/SCRIPT/PID.F

Cat/root/script/pid.f