Andy Westlake <[EMAIL PROTECTED]> wrote:
> Bit of an odd one but I need to know how many regular files there are on our
> system so I knocked together a little script, see below. Only problem is it
> seems to run out of memory as its running.
> Any thoughts on how I could improve it would be very gratefully received, or
> is there a module I don't know about that will help?
......
Below is my suggestion.
Vinicius
#!/usr/bin/perl
#
# Copyright (C) 2001 Andy Westlake <[EMAIL PROTECTED]>
#
# /usr/local/sysadm/system/filecount.pl
#
# Usage ./filecount.pl
#
# Script to count all the files on the system with the exception
# of the /, usr and var file systems.
#
# Who Date Modifications
# === ==== =============
# AGJW 04-Jul-2001 Initial script.
# VJL 30-aug-2001 Some improvements.
#
use File::Find;
use strict;
# could be passed by command line option like: -size 1000
my $minimum_size = 0;
# suggestion: could have a command line option like: -orderby {size|name}
# default: name
my $order_by = 'name';
# ---------------------------------------------
# Set up variables.
# ---------------------------------------------
my $date_extn = `date +%Y-%m-%d-%R`;
chomp ($date_extn);
my $logfile = "filecount.$date_extn";
### my $logfile = "/usr/local/sysadm/system/filecount.$date_extn";
open (FSTAB, "</etc/fstab")
or die "Can't read from /etc/fstab: $!, stopped";
my %fstab;
while (<FSTAB>) {
my $data = (split)[1];
$fstab{$data} = 1
if (defined $data && ($data !~ m=^/proc$|^/$|^/var$|^/usr$=));
}
close (FSTAB);
open (LOGFILE, ">$logfile")
or die "Can't write to $logfile: $!, stopped";
my %wanted;
my $totfiles = 0;
foreach (sort keys %fstab) {
print "Mount point is $_\n";
print LOGFILE "Mount point is $_\n";
%wanted = ();
find (\&wanted1, $_);
foreach (($order_by eq 'name')
? (sort keys %wanted)
: (sort {$wanted{$b} <=> $wanted{$a}} keys %wanted)) {
printf LOGFILE " %7d $_\n", $wanted{$_}
if ($wanted{$_} >= $minimum_size);
}
}
print LOGFILE "\n\nTotal number of files is $totfiles\n";
close (LOGFILE);
# ---------------------------------------------
# Define sub-routines.
# ---------------------------------------------
sub wanted1 {
return if (($_ eq ".") || ($_ eq ".."));
return unless -d $_;
my $regfiles = 0;
opendir (CURDIR, $File::Find::name);
while (my $name = readdir (CURDIR)) {
$regfiles += 1
unless ((-d $name) || (-l $name));
}
closedir (CURDIR);
$wanted{$File::Find::name} = $regfiles;
$totfiles += $regfiles;
}
### filecount.pl ends here
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