unix command

Dear sir,
I am dealing with files in c in my programs whether my application will be slower in speed when i execute any unix sysytem command to get or modify the files.

Is it is best to c programms.

for example when i want to sort the filed in alphabetical order in names i can do it easily with unix command but i have to acess all records one by one in c programs.
Thanks,
arun

:confused: hi arun
i m not able to understand your question.
plz can u describe excatkt wht u want?

regards,
Swapneel

:stuck_out_tongue: very old post :stuck_out_tongue:

if you are going to use the available sort command through system call that in turn actually is a 'C' program.
Rather if you are sure of the logic for sort that needs to be implemented in your program, that would be faster than calling sort utility through system command