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Top Forums Shell Programming and Scripting Grep command is not search the complete pattern Post 302825869 by rbatte1 on Tuesday 25th of June 2013 09:57:41 AM
Old 06-25-2013
It could be as simple as quoting your search string:-
Code:
grep -h "${INPUT_FILE_T}" PCF_STARHUB_20130625_1

It's an odd search string though. From the man page I have on RHEL 6.1, I have:-
Code:
A regular expression may be followed by one of several repetition operators:
      ?      The preceding item is optional and matched at most once.
      *      The preceding item will be matched zero or more times.
      +      The preceding item will be matched one or more times.
      {n}    The preceding item is matched exactly n times.
      {n,}   The preceding item is matched n or more times.
      {,m}   The preceding item is matched at most m times.
      {n,m}  The preceding item is matched at least n times, but not more than m times.

So that you mean that you are looking for a record that starts (doesn't have to be at the beginning of the line) with an S, then the H is optional and then I get confused.

Are you trying to use the ? as a single character each time?

I would think a better search string would be more like:-
Code:
INPUT_FILE_T="^SH....................................US"

to represent Start of line, SH, then any 3 characters, then US. The remainder of the line can be ignored.


Do either of these meet your needs?



Robin
Liverpool/Blackburn
UK

Last edited by rbatte1; 06-25-2013 at 10:59 AM.. Reason: Grammar
 

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SVK::Log::Filter::Grep(3)				User Contributed Perl Documentation				 SVK::Log::Filter::Grep(3)

SYNOPSIS
SVK::Log::Filter::Grep - search log messages for a given pattern DESCRIPTION
The Grep filter requires a single Perl pattern (regular expression) as its argument. The pattern is then applied to the svn:log property of each revision it receives. If the pattern matches, the revision is allowed to continue down the pipeline. If the pattern fails to match, the pipeline immediately skips to the next revision. The pattern is applied with the /i modifier (case insensitivity). If you want case-sensitivity or other modifications to the behavior of your pattern, you must use the "(?imsx-imsx)" extended pattern (see "perldoc perlre" for details). For example, to search for log messages that match exactly the characters "foo" you might use svk log --filter "grep (?-i)foo" However, to search for "foo" without regards for case, one might try svk log --filter "grep foo" The result of any capturing parentheses inside the pattern are not available. If demand dictates, the Grep filter could be modified to place the captured value somewhere in the stash for other filters to access. If the pattern contains a pipe character ('|'), it must be escaped by preceding it with a '' character. Otherwise, the portion of the pattern after the pipe character is interpreted as the name of a log filter. STASH
/PROPERTY MODIFICATIONS Grep leaves all properties and the stash intact. perl v5.10.0 2008-08-04 SVK::Log::Filter::Grep(3)
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