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Full Discussion: Query on awk
Top Forums UNIX for Beginners Questions & Answers Query on awk Post 303015202 by vgersh99 on Friday 30th of March 2018 10:50:44 AM
Old 03-30-2018
Code:
RAMUsage=$(ssh $i "ps aux | grep xx| awk '{sum+=\$6};END {print sum/1024" MB"}'")

what's the \ for?
also:
Code:
ps aux | grep xx
16777248 26166  0.0  0.0 103324   844 pts/0    R+   10:20   0:00 grep xx

this is 'grep' from the 'ps' itself - not the process 'xx' you're looking for.
This User Gave Thanks to vgersh99 For This Post:
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LEARN ABOUT BSD

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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