Dear Monks

Are there any guidelines on the naming convention to be followed for variables, subroutines, modules,etc..? If so, could someone point to some links or tutorials? ( This is the only related link I found under tutorials. )

Also, what is the best way for variable declarations? Should the variables be declared as and when they are required? or should they be declared up front and then used?

Variables declared as they are required:- ( I notice that this is widely used) 


#!/usr/bin/perl

use strict;
use warnings;

my ( $path, $file ) = @ARGV;
die "Usage: $0  search/path  data.file\n"
    unless ( -d $path and -f $file );

my ( $inode, $nlinks ) = ( stat _ )[1,3];
die "$file has no hard links\n" if $nlinks == 1;

my ( $chld, $nfound, @found );

.....

[download]

Variables declared upfront:- (Anything wrong with this approach??) 


#!/usr/bin/perl

use strict;
use warnings;

my ( $path, $file,  $inode, $nlinks );

( $path, $file ) = @ARGV;
die "Usage: $0  search/path  data.file\n"
    unless ( -d $path and -f $file );

( $inode, $nlinks ) = ( stat _ )[1,3];
die "$file has no hard links\n" if $nlinks == 1;



.....

[download]

In reply to Naming convention for variables, subroutines, modules, etc.. and variable declaration by Anonymous Monk

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