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Shell Programming and Scripting
Pattern Matching in PERL
Post 302594465 by aravindj80 on Tuesday 31st of January 2012 11:03:21 AM
01-31-2012
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i can only find the first occurance of a pattern how do i set it to loop untill all occurances have changed.
#! /usr/bin/perl
use POSIX;
open (DFH_FILE, "./dfh") or die "Can not read file ($!)";
foreach (<DFH_FILE>) {
if ($_ !~ /^#|^$/) {
chomp;
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Hi,
I got doubt in Pattern matching, could you tell me how the following differs in action ??
if ( $line1==/$line2/ )
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if ( $line1=~m/$line2/)
What is the significance of '~' in matching.
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----------
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-------------------
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LEARN ABOUT DEBIAN
pvm_lvgroup
LVGROUP(3PVM) PVM Version 3.4 LVGROUP(3PVM) NAME
pvm_lvgroup - Unenrolls the calling process from a named group. SYNOPSIS
C int info = pvm_lvgroup( char *group ) Fortran call pvmflvgroup( group, info ) PARAMETERS
group Character string group name of an existing group. info Integer status code returned by the routine. Values less than zero indicate an error. DESCRIPTION
The routine pvm_lvgroup unenrolls the calling process from the group named group. If there is an error info will be negative. If a process leaves a group by calling either pvm_lvgroup or pvm_exit, and later rejoins the same group, the process may be assigned a new instance number. Old instance numbers are reassigned to processes calling pvm_joingroup. EXAMPLES
C: info = pvm_lvgroup( "worker" ); Fortran: CALL PVMFLVGROUP( 'group2', INFO ) ERRORS
These error conditions can be returned by pvm_lvgroup PvmSysErr pvmd not responding. PvmBadParam giving a NULL group name. PvmNoGroup giving a non-existent group name. PvmNotInGroup asking to leave a group you are not a member of. SEE ALSO
pvm_joingroup(3PVM) 30 August, 1993 LVGROUP(3PVM)