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Top Forums Shell Programming and Scripting Find the numeric value in a string and then check the max. value Post 302773505 by lovelysethii on Thursday 28th of February 2013 05:39:30 AM
Old 02-28-2013
Find the numeric value in a string and then check the max. value

hi,

i have a string
"[10/2/08 6:19:55:834 EDT] 00000069 ThreadMonitor W WSVR0606W: Thread "WebContainer : 43|null" (00000069) was previously rep
orted to be hung but has completed. It was active for approximately 47533430 milliseconds. There is/are 43 thread(s) in tot
al in the server that still may be hung."

and i want to find "There is/are 43", i am using the following command for this:
Code:
grep 'There is/are' hung.txt | cut -c219-234

there may have multiple values for the above string, so i need to check the max number out of this string. my initial approach is:
Code:
grep 'There is/are' hung.txt | cut -c230-234 | tr -dc '[0-9]'


i am only cutting the numeric values but all the values are printing into a single line. plz help me with this or if there is another way to do this????

thanks in advance

Last edited by Franklin52; 02-28-2013 at 10:41 AM.. Reason: Please use code tags for data and code samples
 

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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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