shell_exec
    (PHP 4 , PHP 5)
shell_exec -- 
     Execute command via shell and return the complete output as a string
    
Description
string 
shell_exec ( string cmd)
     This function is identical to the backtick operator.
    
     
Example 1. A shell_exec() example 
<?php $output = shell_exec('ls -lart'); echo "<pre>$output</pre>"; ?>
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    Note: This function is disabled in safe mode.
     See also exec() and
     escapeshellcmd().