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Full Discussion: Query on awk
Top Forums UNIX for Beginners Questions & Answers Query on awk Post 303015201 by nextStep on Friday 30th of March 2018 10:24:11 AM
Old 03-30-2018
Query on awk

Hello,


I am trying to find the RAM usage for one of the process from a group of servers.

xx-Process name

The command i used by logging to the individual server is as below

Code:
ps aux | grep xx | awk '{sum=sum+$6}; END {print sum/1024 " MB"}'

And the result is
Code:
0.824219 MB

This seems to be correct as per the ps command on the server.

Code:
ps aux | grep xx
16777248 26166  0.0  0.0 103324   844 pts/0    R+   10:20   0:00 grep xx


Now i implemented via shell script and is giving me a different result.


Code:
RAMUsage=$(ssh $i "ps aux | grep xx| awk '{sum+=\$6};END {print sum/1024" MB"}'")
echo "the ramusage is " $RAMUsage

the ramusage is 2.1875

Please help me where it went wrong.

Last edited by RudiC; 03-30-2018 at 06:48 PM..
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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