Top Forums Shell Programming and Scripting getting the stanza names if the pattern found Post 302137034 by vijaya2006 on Friday 21st of September 2007 09:05:29 AM
Data getting the stanza names if the pattern found

Hi Friends,
I have a file as below :

machine1:
abc
xyz
qwerty
machine2:
jkl
mno
machine3:
hhh
kkk
qwerty

Now ...i need to find all the stanza names that have the pattern "qwerty'"
in it...( i need to get the output as machine1 and machine3 since qwerty pattern is found there).
Can anybody share there knowledge in this?

Thanks in advance

Last edited by vijaya2006; 09-21-2007 at 11:07 AM.. Reason: error in the text
 
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Char(3pm)						User Contributed Perl Documentation						 Char(3pm)

NAME
PDL::Char -- PDL subclass which allows reading and writing of fixed-length character strings as byte PDLs SYNOPSIS
use PDL; use PDL::Char; my $pchar = PDL::Char->new( [['abc', 'def', 'ghi'],['jkl', 'mno', 'pqr']] ); $pchar->setstr(1,0,'foo'); print $pchar; # 'string' bound to "", perl stringify function # Prints: # [ # ['abc' 'foo' 'ghi'] # ['jkl' 'mno' 'pqr'] # ] print $pchar->atstr(2,0); # Prints: # ghi DESCRIPTION
This subclass of PDL allows one to manipulate PDLs of 'byte' type as if they were made of fixed length strings, not just numbers. This type of behavior is useful when you want to work with charactar grids. The indexing is done on a string level and not a character level for the 'setstr' and 'atstr' commands. This module is in particular useful for writing NetCDF files that include character data using the PDL::NetCDF module. FUNCTIONS
new Function to create a byte PDL from a string, list of strings, list of list of strings, etc. # create a new PDL::Char from a perl array of strings $strpdl = PDL::Char->new( ['abc', 'def', 'ghij'] ); # Convert a PDL of type 'byte' to a PDL::Char $strpdl1 = PDL::Char->new (sequence (byte, 4, 5)+99); $pdlchar3d = PDL::Char->new([['abc','def','ghi'],['jkl', 'mno', 'pqr']]); string Function to print a character PDL (created by 'char') in a pretty format. $char = PDL::Char->new( [['abc', 'def', 'ghi'], ['jkl', 'mno', 'pqr']] ); print $char; # 'string' bound to "", perl stringify function # Prints: # [ # ['abc' 'def' 'ghi'] # ['jkl' 'mno' 'pqr'] # ] # 'string' is overloaded to the "" operator, so: # print $char; # should have the same effect. setstr Function to set one string value in a character PDL. The input position is the position of the string, not a character in the string. The first dimension is assumed to be the length of the string. The input string will be null-padded if the string is shorter than the first dimension of the PDL. It will be truncated if it is longer. $char = PDL::Char->new( [['abc', 'def', 'ghi'], ['jkl', 'mno', 'pqr']] ); $char->setstr(0,1, 'foobar'); print $char; # 'string' bound to "", perl stringify function # Prints: # [ # ['abc' 'def' 'ghi'] # ['foo' 'mno' 'pqr'] # ] $char->setstr(2,1, 'f'); print $char; # 'string' bound to "", perl stringify function # Prints: # [ # ['abc' 'def' 'ghi'] # ['foo' 'mno' 'f'] -> note that this 'f' is stored "f" # ] atstr Function to fetch one string value from a PDL::Char type PDL, given a position within the PDL. The input position of the string, not a character in the string. The length of the input string is the implied first dimension. $char = PDL::Char->new( [['abc', 'def', 'ghi'], ['jkl', 'mno', 'pqr']] ); print $char->atstr(0,1); # Prints: # jkl perl v5.14.2 2011-03-30 Char(3pm)

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