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Full Discussion: Help to fetch first two characters from a word in perl
Top Forums Shell Programming and Scripting Help to fetch first two characters from a word in perl Post 302423467 by girish.raos on Friday 21st of May 2010 05:46:24 AM
Old 05-21-2010
Quote:
Originally Posted by pludi
Depends on how you want to proceed with that information. To just print the line if a word matches your requirements:
Code:
perl -ne 'print if /\bDE_[\w_]+?/;' input.txt

If you want just the remainder of the word:
Code:
perl -ne 'print $1 if /\bDE_([\w_]+?)/' input.txt


Thanks a lot Pludi, it was very useful for me.

---------- Post updated at 04:46 AM ---------- Previous update was at 04:45 AM ----------
Quote:
Originally Posted by Yogesh Sawant
check if this is what you are looking for:
Code:
$word = "DE_PR_Package__Basic";
if ($word=~ m/^DE/) {
    print "matches\n";
}
else {
    print "does not match\n";
}

in the regex, ^ is the start of string. You might want to add _ after DE so that the regex is ^DE_
Thanks a lot Yogesh, It was very useful for me.
 

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LEARN ABOUT DEBIAN

sql::reservedwords::mysql

SQL::ReservedWords::MySQL(3pm)				User Contributed Perl Documentation			    SQL::ReservedWords::MySQL(3pm)

NAME

       SQL::ReservedWords::MySQL - Reserved SQL words by MySQL

SYNOPSIS

	  if ( SQL::ReservedWords::MySQL->is_reserved( $word ) ) {
	      print "$word is a reserved MySQL word!";
	  }

DESCRIPTION

       Determine if words are reserved by MySQL.

METHODS

       is_reserved( $word )
	   Returns a boolean indicating if $word is reserved by either MySQL 3.2, 4.0, 4.1, 5.0 or 5.1.

       is_reserved_by_mysql3( $word )
	   Returns a boolean indicating if $word is reserved by MySQL 3.2.

       is_reserved_by_mysql4( $word )
	   Returns a boolean indicating if $word is reserved by either MySQL 4.0 or 4.1.

       is_reserved_by_mysql5( $word )
	   Returns a boolean indicating if $word is reserved by either MySQL 5.0 or 5.1.

       reserved_by( $word )
	   Returns a list with MySQL versions that reserves $word.

       words
	   Returns a list with all reserved words.

EXPORTS

       Nothing by default. Following subroutines can be exported:

       is_reserved
       is_reserved_by_mysql3
       is_reserved_by_mysql4
       is_reserved_by_mysql5
       reserved_by
       words

SEE ALSO

       SQL::ReservedWords

       <http://dev.mysql.com/doc/>

AUTHOR

       Christian Hansen "chansen@cpan.org"

COPYRIGHT

       This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.8.8							    2008-03-28					    SQL::ReservedWords::MySQL(3pm)
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