Jquery Button OnClick Run System Command

Question

Can anyone provide a simple example of running a system command in the background when a button is clicked.

eg: when this is clicked:

<button onclick="startprocess">Start</button>

run

$var = system('tail -f /mail.log > /download/mail.log 2>&1 & echo $!');

Thanks

Solution

html :

<button id="run_system">Start</button>

js :

$('#run_system').on('click', function() {
    $.ajax({
        url : 'run.php'
    }).done(function(data) {
        console.log(data);
    });
});

run.php :

<?php
    echo shell_exec('tail -f /mail.log > /download/mail.log 2>&1 & echo $!');
?>

Comments

[adeneo]

I'm guessing the example would involve an ajax call and running the command with PHP. You should probably try to figure it out yourself, it's not that hard, and then ask again when and if you fail.

[JeffVader]

Thanks. Once the run.php has been called can I get the pid of the tail process it's called ? My original example wrote the pid to $var.

[adeneo]

And now it's echoing the PID back and console logging it ?