Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

Re: Splitting up quoted/escaped command line arguments

by choroba (Cardinal)
on Feb 11, 2014 at 18:10 UTC ( [id://1074461]=note: print w/replies, xml ) Need Help??


in reply to Splitting up quoted/escaped command line arguments

It seems the arguments are already properly quoted in the database to be part of one string. Why don't you use just the exec $string?
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

Replies are listed 'Best First'.
Re^2: Splitting up quoted/escaped command line arguments
by Tommy (Chaplain) on Feb 11, 2014 at 18:23 UTC

    ...Because that sends it through a shell. I need to avoid that.

    Tommy
    A mistake can be valuable or costly, depending on how faithfully you pursue correction
      But hose commands would not work unless you pass them through a shell!

      Or if you prefer to view it from a different angle, you will have to implement in your program all the shell functionality used by those commands!

      Update: And BTW, if those commands involve calling ssh, then a shell would be invoked at the remote side. This is an unavoidable feature of the SSH protocol.

        Yes, I'm keenly aware that a shell is going to be invoked on the remote side. That's fine. I need to avoid it on the local machine. Why do you say that these commands won't work unless passed to a shell vs calling ssh directly? The perldocs don't seem to agree with your assertion.

         

        Tommy
        A mistake can be valuable or costly, depending on how faithfully you pursue correction
      I need to avoid that.
      Why?

        I'll potentially be doing hundreds of these calls in parallel and I have to avoid the overhead of shelling out every time. I've already tested and the difference is very significant when opening to ssh vs opening to a shell opening to ssh. There's a huge slowdown on the local machine when I involve the shell.

        Tommy
        A mistake can be valuable or costly, depending on how faithfully you pursue correction

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://1074461]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others contemplating the Monastery: (3)
As of 2024-03-29 06:08 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found