How to take output of linux shell command in C/C++ program

[riteshtaksali]

Hello

How to take output of following command/ or any linux shell script in c/c++ program

This command return the system memory/ram size.

char *szCommand="grep MemTotal /proc/meminfo";
system(szCommand);


Is there any alternative of doing this?

Thanks
Ritesh

[wje_lf]

If I understand your question correctly, you wish to examine with your program the output of an executed program or script or shell command line.

Do this at the command line:

man popen

If man pages are not installed on your system, google this:

linux man popen

Hope this helps.

[riteshtaksali]

Yes it solves my problem.

Thanks for quick reply.