48 lines
1.1 KiB
PHP
48 lines
1.1 KiB
PHP
|
#!/usr/bin/php
|
||
|
|
<?php
|
||
|
|
# ftrunc.php - a script to truncate files
|
||
|
|
# Copyright (C) 2008 Roman Mamedov <http://rm.pp.ru/>
|
||
|
|
#
|
||
|
|
# This program is free software: you can redistribute it and/or modify it under the terms of
|
||
|
|
# the GNU General Public License version 3 as published by the Free Software Foundation.
|
||
|
|
# See http://www.gnu.org/licenses/gpl-3.0.html for more details.
|
||
|
|
|
||
|
|
$file = $argv[1];
|
||
|
|
$size = $argv[2];
|
||
|
|
$unit = $argv[3];
|
||
|
|
|
||
|
|
if((trim($file)=="") || (!is_numeric($size)))
|
||
|
|
die ("Usage:\n ftrunc.php <file name> <new size> <size unit(K/M/G/T)>\n");
|
||
|
|
|
||
|
|
switch ($unit) {
|
||
|
|
case "K":
|
||
|
|
$size_b = $size*1024; break;
|
||
|
|
case "M":
|
||
|
|
$size_b = $size*1024*1024; break;
|
||
|
|
case "G":
|
||
|
|
$size_b = $size*1024*1024*1024; break;
|
||
|
|
case "T":
|
||
|
|
$size_b = $size*1024*1024*1024*1024; break;
|
||
|
|
default:
|
||
|
|
$unit = "";
|
||
|
|
$size_b = $size;
|
||
|
|
}
|
||
|
|
|
||
|
|
echo "File: $file\n";
|
||
|
|
|
||
|
|
if($unit!="") {
|
||
|
|
echo "New size: $size $unit ($size_b bytes)\n";
|
||
|
|
} else {
|
||
|
|
echo "New size: $size_b bytes\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
$fh = fopen($file, "a");
|
||
|
|
if($fh===false) die("Unable to open file for writing.");
|
||
|
|
|
||
|
|
echo "Truncating... ";
|
||
|
|
if(ftruncate($fh, $size_b)) echo "Done.\n"; else echo "FAILED.\n";
|
||
|
|
|
||
|
|
fclose($fh);
|
||
|
|
|
||
|
|
?>
|