I need some help, how can I execute a shell command in a php file? on how to display the content of a file in a webpage.
I tested this script, it works
<?php$output = shell_exec('ls /var/www/vhosts/resame');echo "<pre>$output</pre>";?>but this script, did not display anything.
<?php$output = shell_exec('cat /var/log/mail.log');echo "<pre>$output</pre>";?>Best Answer
Run this command first (based on your apache user)
CHMOD 777 /var/log/mail.log
If apache user is nobodyCHOWN nobody /var/log/mail.log
If apache user is www-dataCHOWN www-data /var/log/mail.log
Then use the following to display data on the web page.
<?php$output = shell_exec('cat /var/log/mail.log 2>&1');echo "<pre>$output</pre>";?>Good one @DJ, let me also add that permission 777 for /var/log/mail.log is not necessary since you are only reading the file content, permission 644 should be enough. I do not need to over-flog the security implication changing your public file permission to 777.