Linux Commands in php

Question

I am using linux commands like "rm -f" or executing some exe through php shell_exec but the command is not working in same manner as linux command line. What can be the problem? Thanks in Advance

$myfile = fopen("preOrder.txt", "w") or die("Unable to open file!");
if (isset($_POST['submit'])) { 
    $strg = $_POST['myText']; 
    fwrite($myfile, $strg); 
    fclose($myfile);
    $lyparser_log=shell_exec('./lyparser.out < preOrder.txt');
    $file1=fopen("log.txt","w"); 
    fwrite($file1,$lyparser_log);
}

@LawrenceJohnson if (isset($_POST['submit'])) { $strg = $_POST['myText']; fwrite($myfile, $strg); fclose($myfile); $lyparser_log=shell_exec('./lyparser.out < preOrder.txt'); $file1=fopen("log.txt","w"); fwrite($file1,$lyparser_log); — Akhil Bhatia, Jan 01 '16 at 05:36

score 0 · Answer 1 · answered Jan 01 '16 at 05:36

0

you can try the following code

exec("rm -rf a\\");

answered Jan 01 '16 at 05:36

Sana

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Consider revising with an explanation as to what results you expect or what you intend to help the OP with reaching a solution to the question. If you are trying to get more information, it would be preferable to use comments on the question. – Lawrence Johnson Jan 01 '16 at 05:57
Like we use touch command in cmd to create file or rm to remove but I am not able to do do through php shell_exec The above code you see I am trying to run a executable file but its output in cmd and php shell_exec are different. – Akhil Bhatia Jan 01 '16 at 06:11

devpro · Answer 2 · 2016-01-01T07:05:12.457

0

You can execute this like that in PHP:

$yourCommand = ""; // use your command here like **rm -f**
shell_exec($yourCommand); // or any other command pass in this function.

From PHP Manual:

This function will execute command via shell and return the complete output as a string.

Side Note: If you have all permission and still this function not work, than check your PHP.INI file and remove shell_exec from disable_functions.

edited Jan 01 '16 at 07:05

answered Jan 01 '16 at 06:23

devpro

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3
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I used same command but it isnt working. I am using ubuntu 14 64-bits. So is there any problem of permissions also while we use LAMP stack? – Akhil Bhatia Jan 01 '16 at 06:45
may be, try this simple call, echo shell_exec("ls"); – devpro Jan 01 '16 at 06:48
you can also try this for checking... echo shell_exec('whoami'); – devpro Jan 01 '16 at 06:52
@AkhilBhatia: all directories and the file have r-x... ? – devpro Jan 01 '16 at 06:53
The folder in which my code is kept I have given +777 through chmod. – Akhil Bhatia Jan 01 '16 at 06:56
it means you have the access. @AkhilBhatia – devpro Jan 01 '16 at 07:01
@AkhilBhatia: one last thing, check your php.ini file, and find: disable_functions=exec,passthru,shell_exec,system,proc_open,popen...... and remove shell_exec .. – devpro Jan 01 '16 at 07:03
@AkhilBhatia: hope, this will help u http://stackoverflow.com/questions/7221789/shell-exec-does-not-run-in-the-background-any-other-solution – devpro Jan 01 '16 at 07:51

Linux Commands in php

2 Answers2