PHP cannot find my shell script to execute it with shell_exec()

Question

It turns out my FTP client smushed my shell script, so thanks to everyone who contributed. :)

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I'm trying to use PHP to execute a shell script stored in the same directory as my PHP script using exec(), but I get an error:

sh: 1: ./hlsvod.sh: not found

I've tried using the full path to the script, I've chmodded it 777, I've tried using shell_exec() but I still get the same error (I redirected the stderr to stdout to get it). The script definitely exists. Could you help?

Code:

<?php
/* Probably not the most elegant solution but it works. */
$pid = $_GET['pid'];
if(empty($_GET['pid'])){
    die("No PID -- do ?pid=XXXXXXXX");
}
$tmpfile = exec("./hlsvod.sh ".$pid." 2>&1");

echo nl2br(shell_exec("pwd;whoami;"));
var_dump($tmpfile);
$a = fopen($tmpfile."m3u8", "r");
$stream = fread($a);
fclose($a);
$b = fopen($tmpfile."subs");
$subs = fread($b);
fclose($b);
var_dump($stream);
var_dump($subs);
?><!doctype html>
<html>
<head>
<meta name="viewport" content="width=device-width,user-scalable=no">
<title>New 3DS iPlayer - <?=$pid;?></title>
</head>
<body>
<h1>Live HLS Stream for <?=$pid;?></h1>
<p>HLS stream URL: <a href="<?=$stream;?>"><?=$stream;?></a></p>
<p>VTT subtitles URL: <a href="<?=$subs;?>"><?=$subs;?></a></p>
<video id="video" controls preload="metadata">
   <source src="<?php echo $stream; ?>">
   <track label="English" kind="subtitles" srclang="en" src="<?=$subs;?>" default>
</video>
</body>
</html>

skip the "./" and try again. If there is just a filename and no path specified, php will automatically look in the current directory. — Realitätsverlust, Nov 09 '15 at 13:17
Don't post links to your code. Paste your code inside your question please — Machavity, Nov 09 '15 at 13:26

score 1 · Answer 1 · answered Nov 09 '15 at 13:29

1

Try using the absolute path like this

$tmpfile = exec("sh: 1: " . $_SERVER["DOCUMENT_ROOT"] . "/hlsvod.sh ".$pid." 2>&1");

answered Nov 09 '15 at 13:29

Julio Soares

1,200
8
11

Nope - same error as last time. (Had to add /bbci after `$_SERVER["DOCUMENT_ROOT"]."` because my page is in /var/www/bbci – Eva Lauren Kelly Nov 09 '15 at 13:38

Eva Lauren Kelly · Accepted Answer · 2015-12-09T11:38:25.013

0

Turned out my FTP client smushed up the line endings and messed all sorts up in my shell script.

Watch your line endings!

edited Dec 09 '15 at 11:38

answered Nov 09 '15 at 14:13

Eva Lauren Kelly

403
1
4
15

Ananta Prasad · Answer 3 · 2015-11-10T09:28:11.290

-1

check this link for executing shell commands using php

<?php
$output = shell_exec('ls -lart');
echo "<pre>$output</pre>";
?>

source and for more check this

http://php.net/manual/en/function.shell-exec.php

edited Nov 10 '15 at 09:28

answered Nov 09 '15 at 13:26

Ananta Prasad

3,655
3
23
35

2

This doesn't answer the question... Thanks anyway, though. – Eva Lauren Kelly Nov 09 '15 at 13:35
Thanks jsa and not to Machavity – Ananta Prasad Nov 09 '15 at 13:36

PHP cannot find my shell script to execute it with shell_exec()

3 Answers3