One problem is that qx[] is not what you think it is. It isn't used to build commands... its used to execute them. That is to say,

$result = qx[some command string]; is equivalent to

$result = `some command string`; and they are both (roughly speaking) similar in purpose to

system('some command string');

and you will only need to do one of them not qx// and system.

Looking at your code, I think that you probably want q// (or possibly qq//) instead of qx//. That won't fix all the problems VSarkiss' point will also need fixing.

Also whether system is the right choice will depend on how the commands you are using behave, but I am unfamilair with them, so I leave that to someone else.