| Description: |
Personally, on a Linux system, I use locate very regularly. The problem is that I have a couple Win32 systems that I use, and, of course, there isn't a tool like locate. So I wrote this. I use it quite a bit, so I thought I'd share it here in the hopes that others would find it useful. I tried to be as compliant with the GNU locate command as possible, plus I added a few simple features that I needed but weren't part of the GNU locate specifications.
There are a few variables that you'll want to alter to suit the needs of your system. Comments welcome. |
#!/usr/bin/perl
#--------------------------------------------------------------------#
# Perl Locate
# A slightly modified perl port of the Linux locate command
#
# Date Written: 5-Jun-2001 04:28:21 PM
# Last Modified: 19-Jul-2001 08:09:38 AM
# Author: Kurt Kincaid
# Copyright (c) 2001, Kurt Kincaid
# All Rights Reserved
#
# NOTICE: This code is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself, though it
# would be greatly appreciated if the original author
# information remains intact.
#--------------------------------------------------------------------#
use Getopt::Std;
use File::Find();
use Date::Manip;
$| = 1;
chomp @ARGV;
$count = 0;
$VERSION = "2.01";
$LAST_MODIFIED = "Thursday, July 19 2001 08:09:38 PM";
#--------------------------------------------------------------------#
# Start User Customize Section
#--------------------------------------------------------------------#
$TZ = "US/Central";
$databaseName = "files.idx";
$databaseDir = "/kurt/files";
#--------------------------------------------------------------------#
# End User Customize Section
#--------------------------------------------------------------------#
getopts("uUvVihScl:");
if ( $opt_u || $opt_U ) {
Update();
}
if ( $opt_S ) {
$mod = ( stat("$databaseDir/$databaseName" . "\.pag" ) )[9];
$date = localtime( $mod );
OpenDB();
@files = keys %Files;
$count = @files;
CloseDB();
$Count = Commas( $count );
print ("Last Update: $date\n");
print ("Files in Database: $Count\n");
exit;
}
if ( $opt_V ) {
Version();
}
if ( $opt_h || $ARGV[0] eq "" ) {
Usage();
}
#--------------------------------------------------------------------#
# Begin Main Routine
#--------------------------------------------------------------------#
OpenDB();
if ( $opt_i ) {
@files = grep { /$ARGV[0]/i } keys %Files;
} else {
@files = grep { /$ARGV[0]/ } keys %Files;
}
foreach $file ( @files ) {
$count++;
if ( $opt_c ) { next }
if ( $opt_l ) {
if ( $count <= $opt_l ) {
Show();
} else {
last;
}
} else {
Show();
}
}
if ( $opt_c ) {
print $count, "\n";
}
CloseDB();
exit;
#--------------------------------------------------------------------#
# End Main Routine
#--------------------------------------------------------------------#
sub Version {
print <<END;
Locate v$VERSION by Kurt Kincaid (sifukurt\@yahoo.com)
A perl port of the Linux locate command, with minor modifications.
Last Modified: $LAST_MODIFIED
END
exit;
}
sub Update {
OpenDB();
use vars qw/*name *dir *prune/;
*name = *File::Find::name;
*dir = *File::Find::dir;
*prune = *File::Find::prune;
File::Find::find( { wanted => \&Wanted }, '/' );
if ( $opt_U ) {
$Count = Commas( $count );
$mess = "Files Processed: $Count";
print "\r$mess" . ( " " x ( 75 - length $mess ) );
}
foreach $file ( keys %Files ) {
unless ( -e $file ) {
$deleted++;
delete $Files{$file};
}
}
if ( $opt_U ) {
$deleted = Commas( $deleted );
if ( $deleted eq "" ) { $deleted = "0" }
print ("\nDeleted Database Entries: $deleted\n");
}
CloseDB();
exit;
}
sub Usage {
print <<END;
locate [-chilSuUvV] pattern
-c\tSuppress normal output; instead print a count of matching file n
+ames.
-h\tPrint this screen.
-i\tIgnore case distinctions in both the pattern and the database.
-l number
\tLimit output to number of file names and exit.
-S\tShow date of last database update and number of files in databas
+e.
-u\tUpdate file database. (This may take several minutes.)
-U\tSame as -u, only with verbose output.
-v\tVerbose output. Includes file size and time of last modification
+.
-V\tPrint version information.
END
exit;
}
sub Wanted {
$file = $mtime = $kb = undef;
if ( -d $name ) { next }
#-----------------------------------------------------------------
+---#
# I included the following two lines for use on my Win32
# system. I didn't see a need to index temporary files. Leave
# them commented or uncomment them as you see fit.
#-----------------------------------------------------------------
+---#
#if ( $name =~ /temporary internet/i ) { next }
#if ( $name =~ /\.tmp/i ) { next }
$count++;
if ( $opt_U ) {
$Count = Commas( $count );
$mod = $count % 10;
if ( $mod == 0 ) {
$mess = "Files Processed: $Count";
print "\r$mess" . ( " " x ( 75 - length $mess ) );
}
}
$size = ( stat($name) )[7];
$mod = localtime( ( stat($name) )[9] );
if ( $size > 1024 ) {
$size = sprintf( "%.2f", $size / 1024 ) . "KB";
} else {
$size .= " bytes";
}
if ( defined $Files{$name} ) {
( $mtime, $kb ) = split( /\|/,$Files{$name} );
}
if ( $mtime ne $mod ) {
$Files{$name} = "$mod\|$size";
} else {
next;
}
}
sub Commas {
local $_ = shift;
1 while s/^(-?\d+)(\d{3})/$1,$2/;
return $_;
}
sub Show {
if ( $opt_v ) {
( $mod, $size ) = split( /\|/,$Files{$file} );
$date = UnixDate( $mod, "%e\-%b\-%Y %T" );
print("$file ($size) $date\n");
} else {
print $file, "\n";
}
}
sub OpenDB {
dbmopen( %Files, "$databaseDir/$databaseName", 0666 );
}
sub CloseDB {
dbmclose ( %Files );
}
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