How to call external commands in an iPhone Program

The following describes how to call external commands in unofficial iPhone SDK programs. -(Nsstring *) executecommand: (nsstring *) cmd {nsstring * output = [nsstring string]; file * pipe = popen ([cmd cstringusingencoding: nsasciistringenc

The following describes how to call external commands in unofficial iPhone SDK programs.

 

 

1. -(Nsstring *) executecommand: (nsstring *) cmd
2. {
3. Nsstring * output = [nsstring string];
4. File * pipe = popen ([cmd cstringusingencoding: nsasciistringencoding], "R ");
5. If (! PIPE) return;
6.  
7. Char Buf [1024];
8. While (fgets (BUF, 1024, pipe )){
9. Output = [Output stringbyappendingformat: @ "% s", Buf];
10. }
11.  
12. Pclose (PIPE );
13. Return output;
14. }
15.  
16. Nsstring * yourcmd = [nsstring stringwithformat: @ "your command"];
17. [Self executecommand: yourcmd];