terminal command in c program

eng_suha · 05-21-2010, 09:04 AM

hi guys

I want to design c program can run terminal command and put the output of command into file... How can i do this ?

for example :

string s = " iwlist scan "

and when i run the programm this command applied and put the output into specific file

plz help me

rweaver · 05-21-2010, 11:09 AM

Been a while since I did c, but i believe you're looking for the "system" call, as for putting it in a specific file... you could just specify it in the command itself--

system("/usr/local/sbin/command > /tmp/out-file");

Generally speaking, its far easier to write a bash or perl script than a c program when you're heavily interacting with system and you may want to look at those routes depending on what the end goal is here.