runing cmd from C

[rock freak]

hi there guys how would you run a external program in C lets take the windows cmd cos all windows machines sud have tht!!!

any ideas??

[JamesA]

What do u mean? Do you mean sending direct commands to the OS using C?

system(); should work, such as in windows system("dir"); would send the command dir to cmd and return the results. for linux it would be system("ls"); etc.

I hope this is what your asking, if not, sorry for the waste of time.:D

[rock freak]

i was more thinking of getting C to open another program, i wasnt to clear on what i ment there sorry

[JamesA]

im not sure if there is another function in C to do this, but system should be able to work. It must also be said im not the most competant C coder, havn't programmed in it in a long time.

However, lets say the other program you want to run is in the directory
"C:\rockfreak\anotherprogram.exe"

then to run that in a C program would be system("C:\rockfreak\anotherprogram.exe");

i..think.. give it a try.

[jerome bettis]

when did this become a windows forum lol ...


you'll need to use fork() and excevp()

this thread should help you get what you need: http://www.ubuntuforums.org/showthread.php?t=43562&highlight=fork

[wmcbrine]

system() works almost everywhere (it's ANSI). It's not as sophisticated as fork()/exec(), but you probably don't need it to be.

popen() is also nice.

[gord]

http://www.ubuntuforums.org/showthread.php?t=95533 has a nice simple version of howto do it, there are quite a few ways to skin a cat ;)