Question

im using system command in perl to execute su command like this

system("su -");

The above command works fine..

But if my command is this

su -c "echo hello"

Then how do i embed this command into system command of perl?

Answer 1

You simple need quote escaping, either by using a different quote set:

system('su -c "echo hello"');

Or by “escaping” the quotes themselves:

system("su -c \"echo hello\"");

Or as individual arguments, as mu is too short points out:

system("su", "-c", "echo hello");