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Operating Systems AIX "too big" and "not enough memory" errors in shell script Post 302284905 by bakunin on Friday 6th of February 2009 01:15:08 PM
Old 02-06-2009
Hmm, when a command as small as "/usr/bin/rm" does not fit into memory any more (as per your first post here) there is something seriously wrong.

If the problem goes away temporarily with a reboot chances are you have a memory leak problem. To track this sort of problems down is sometimes hard, because of the ephemeral nature of these. You could wait until the problem shows up and then use "ps -Alo vsz<,other options>" to get the "virtual memory footprint" of every process running. See the man page of "ps" for more information about possible options.

Another common source of problems are java processes, which are generally known to be memory hogs. Find out if there are java processes running ("ps -fe | grep java") and if there are some you have a likely cause for your problem.

Further lets examine the overall memory situation of your machine. Please post the output of the following commands:

"svmon -G" (only as root)

"vmstat -v"

"lsps -a"

Also examine the crontabs of all users on the machine. Maybe some memory hog is started regularly and this is whats causing your problems.

I hope this helps.

bakunin
 

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SHUNIT2(1)																SHUNIT2(1)

NAME
shunit2 - A unit test framework for shell scripts SYNOPSIS
shunit2 unitfile DESCRIPTION
shUnit2 is a xUnit unit test framework for Bourne based shell scripts, and it is designed to work in a similar manner to JUnit, PyUnit, etc.. If you have ever had the desire to write a unit test for a shell script, shUnit2 can do the job. You can either run shunit2 directly from the commandline and specify the unit file or directly source the shunit2 executable. If you directly execute shunit2 and don't specify a unitfile shunit2 assumes a empty testfile and will return without an error message. EXAMPLE
Simple script to test if 1 equals 1 #! /bin/sh testEquality() { assertEquals 1 1 } # load shunit2 . shunit2 Execute shUnit2 unit tests directly from the commandline shunit2 /path/to/unit/file OPTIONS
shunit2 does not support any commandline options at all. You can either source shunit2 to execute your unit tests or directly run shunit2 as a commandline script. SEE ALSO
For more information see http://code.google.com/p/shunit2/ or have a look at the installed documentation in /usr/share/doc/shunit2/ AUTHOR
shunit2 was written by Kate Ward <kate.ward@forestent.com>. This manpage was written by Ulrich Dangel <mru@spamt.net>. 2.1.6 03/25/2012 SHUNIT2(1)
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