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Full Discussion: Perl - setting a variable ?
Top Forums Shell Programming and Scripting Perl - setting a variable ? Post 302349482 by rethink on Tuesday 1st of September 2009 08:38:48 AM
Old 09-01-2009
wow, thankyou that solves all my problems ....perl really does have an answer for everything doesnt itSmilie


script now returns
Code:
# ./time.pl 

datetime equals 2009-09-01 11:04:03



---------- Post updated at 07:38 AM ---------- Previous update was at 05:04 AM ----------

just out of interest and to save me repeating this code throughout my script when i need it, is there an easy way to functionise this ?

I tried this


Code:
#!/bin/perl -w

sub xxtime() {
        my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);
        my $datetime = sprintf "%4d-%02d-%02d %02d:%02d:%02d\n",$year+1900,$mon+1,$mday,$hour,$min,$sec;
        return $datetime;
}

xxtime();

print "\n time date equals $datetime\n";

but it returns a null value for $datetime

presumably perl has the ability to create functions that

a) i dont pass arguments to
b) return an updated value for a variable that i can use elsewhere in the script
 

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WIKI-TOOLKIT-REVERT-TO-DATE(1p) 			User Contributed Perl Documentation			   WIKI-TOOLKIT-REVERT-TO-DATE(1p)

NAME
wiki-toolkit-revert-to-date - Revert the state of a Wiki::Toolkit instance to an earlier point in time. SYNOPSIS
# Removes any changes made to a Wiki::Toolkit instance since a given date # (and optionally time), restoring it to the state at that point. wiki-toolkit-revert-to-date --type postgres --name mywiki --user wiki --pass wiki --host 'db.example.com' --port 1234 --date 2007-01-05 --time 11:23:21 DESCRIPTION
Takes three mandatory arguments: type The database type. Should be one of 'postgres', 'mysql' and 'sqlite'. name The database name. date The date to revert the state back to, in the format YYYY-MM-DD five optional arguments: time The time (on the specified date) to revert the state back to, in the format hh:mm:ss. If not specified, will use midnight. user The user that connects to the database. It must have permission to create and drop tables in the database. pass The user's database password. host The hostname of the machine the database server is running on (omit for local databases). port The port number that the database server is expecting connections to. AUTHOR
Nick Burch COPYRIGHT
Copyright (C) 2006 Nick Burch. All Rights Reserved. This code is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
Wiki::Toolkit perl v5.14.2 2011-09-25 WIKI-TOOLKIT-REVERT-TO-DATE(1p)
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