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Top Forums Shell Programming and Scripting Retrieve RAM memory size from "top" command output Post 302494629 by royalibrahim on Monday 7th of February 2011 11:16:10 PM
Old 02-08-2011
Quote:
Originally Posted by Franklin52
Post the output of your top command and the desired output.
The output is as follows:
Code:
top - 09:45:10 up 15:48,  1 user,  load average: 0.07, 0.02, 0.00
Tasks: 112 total,   1 running, 111 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   1025740k total,  1012624k used,    13116k free,   428188k buffers
Swap:  3004112k total,    74580k used,  2929532k free,   134616k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    1 root      20   0  2848 1688  544 S    0  0.2   0:02.12 init
    2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd


Quote:
Originally Posted by scottn
Code:
# top | awk '/^Mem/ {print $2}'
32G

(If Solaris. But why use top?)

Linux.
Code:
$ top -n1 | awk '/^Mem/ {print $3}'
1026880k

Thanks Scottn, but is it possible to do it via 'sed'??
 

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vzcalc(8)							    Containers								 vzcalc(8)

NAME
vzcalc - calculate resource usage of a container SYNOPSIS
vzcalc [-v] CTID DESCRIPTION
This utility displays the share of the host system resources a particular container is using. If the container is running, the current usage is displayed. High utilization values (>100%) mean the system is overloaded (or the container has an invalid configuration). Current Shows the amount of the resources consumed by the container at a given time. Promised Shows the resources soft limit values "promised" for a given container. Max Shows the resources hard limit values "promised" for a given container. If the -v option is specified, the following additional information is also displayed: Low Mem The part of memory residing at lower addresses and directly accessed by the kernel (only makes sense for 32-bit architectures). Total RAM Total memory. Mem+Swap Amount of memory available for applications (both RAM and swap space). Alloc Mem Standard memory allocations made for applications in a container. This is a more "virtual" system resource than RAM or RAM and swap. Num. Proc Number of processes. OPTIONS
-v Display additional information. EXIT STATUS
Normally, the exit status is 0. On error, the exit status is 1. LICENSE
Copyright (C) 2000-2009, Parallels, Inc. Licensed under GNU GPL. OpenVZ 10 Dec 2009 vzcalc(8)
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