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picasso250/tail.php

Created January 25, 2018 09:19
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tail for web
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tail.php
<?php
$f = isset($_GET['f']) ? $_GET['f'] : '';
if (!$f) {
die("plz specify f");
}
if (!is_file($f))
die("$f is not a file");
header("Content-Type:text/plain;charset=UTF-8");
$output = shell_exec("tail -n 20 $f");
echo "$output";
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