Thread: Starting independent exes from inside a c program

  1. 01-28-2003 #1
    phil_drew
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    Unhappy Starting independent exes from inside a c program

    Hello,

    I'm not a very hard core programmer, and I don't really understand a lot of what goes on with sub-processes etc.

    I need a simple c command to start off a completely seperate executable program from within my source code.
    I don't want the programs to be related in any way in particular. I want it to be as if i had typed the name of the executable into the command prompt, and that's it.

    I've looked at exec and its family, but I'm not sure what it meas about "overlaying" a process onto another, and how the first needs enough memory to accomodate the other etc. I am happy for the two programs to be oblivious to each other, except that one spawns the other.

    Hope that's clear, and I hope someone can help.

    Cheers,
    Phil Drew
  2. 01-28-2003 #2
    Cela
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    >>I want it to be as if i had typed the name of the executable into the command prompt, and that's it.
    Just put what you would type at the command prompt into a string and uss that as the argument to system(). For example, to get the current working directiory, say
    Code:
    system("dir");
    system() is in stdlib.h. :-)
    *Cela*
  3. 01-28-2003 #3
    phil_drew
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    Ooh, lovely - couldn't be simpler!
    I'll try it, thanks!

    Phil
  4. 01-28-2003 #4
    Hammer
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    Did you read the FAQ ?
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]
  5. 01-28-2003 #5
    quzah
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    Originally posted by Hammer
    Did you read the FAQ ?
    Did you really need to ask?

    Quzah.
    Hope is the first step on the road to disappointment.
  6. 01-28-2003 #6
    _Cl0wn_
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    http://www.rt.com/man/exec.3.html
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