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Full Discussion: Pattern matching problem
Top Forums Shell Programming and Scripting Pattern matching problem Post 302809331 by ramsavi on Sunday 19th of May 2013 11:43:13 AM
Old 05-19-2013
Pattern matching problem
if i have to do pattern match for file name with digit alphanumeric value like this
File_1234.csv
File_12sd45rg.csv

i am using this File_[0-9a-zA-Z]*.csv
and File_[0-9]*.csv for digit pattern match.

when i am doing pattern match for the digit then both alphanumeric match
and digit match is coming.
where only digit match should should come.
If usinng [:digit:] then it is not working.

the part of code which i am using is like this
Code:
i=0
len=${#arr[@]}
echo $len

shopt -s extglob

pattern=*[0-9]*.*
pattern1=*[0-9]*_[0-9]*.*
pattern2=*[a-zA-z0-9]*.*
pattern3=File_[0-9]*_[0-9]*.csv
pattern4=File_[a-zA-Z]*_[a-zA-Z]*.csv
pattern5=File_[a-zA-Z0-9]*_[a-zA-Z0-9]*.csv
pattern6=File_[0-9]*[a-zA-Z]*.csv

while [ $len -gt $i ]
do
  case ${arr[$i]} in
  $pattern) echo "pattern %N% match" ;;
  esac
  case ${arr[$i]} in
  $pattern1) echo "pattern %N%_%N% match" ;;
  esac
  case ${arr[$i]} in
  $pattern2) echo "pattern %x% match" ;;
  esac

Last edited by Scott; 05-19-2013 at 01:00 PM.. Reason: Code tags NOT Icode tags; Please stop posting non Redhat questions in the Redhat forum.
 

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LEARN ABOUT OPENDARWIN

tcl_stringmatch

Tcl_StringMatch(3)					      Tcl Library Procedures						Tcl_StringMatch(3)

__________________________________________________________________________________________________________________________________________________

NAME

       Tcl_StringMatch, Tcl_StringCaseMatch - test whether a string matches a pattern

SYNOPSIS

       #include <tcl.h>

       int
       Tcl_StringMatch(string, pattern)

       int
       Tcl_StringCaseMatch(string, pattern, nocase)

ARGUMENTS

       char	    *string	       (in)	 String to test.

       char	    *pattern	       (in)	 Pattern to match against string.  May contain special characters from the set *?[].

       int	    nocase	       (in)	 Specifies whether the match should be done case-sensitive (0) or case-insensitive (1).
_________________________________________________________________

DESCRIPTION

       This  utility  procedure  determines  whether  a  string  matches  a given pattern.  If it does, then Tcl_StringMatch returns 1.  Otherwise
       Tcl_StringMatch returns 0.  The algorithm used for matching is the same algorithm used in the ``string match'' Tcl command and  is  similar
       to the algorithm used by the C-shell for file name matching;  see the Tcl manual entry for details.					   |

       In  Tcl_StringCaseMatch,  the algorithm is the same, but you have the option to make the matching case-insensitive.  If you choose this (by |
       passing nocase as 1), then the string and pattern are essentially matched in the lower case.

KEYWORDS

       match, pattern, string

Tcl									8.1							Tcl_StringMatch(3)
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