如何在php中执行unix命令

Question

i am trying to execute unix command in php script like this.

<?php

echo shell_exec('head -n 1 log_list_23072014|awk  -F ',' '{print $2}'');

?>

This is the file , trying to get the first column of the first row.

NODE,CGR,TERMID,VMGW,ET

but the error message i am getting

Parse error: syntax error, unexpected 'shell_exec' (T_STRING), expecting ',' or ';'.

cant able to find please help.

Answer 1

The string you've used is not valid, you have to escape single quotes inside your string:

<?php echo shell_exec('head -n 1 log_list_23072014|awk  -F \',\' \'{print $2}\'');

You can also use exec()