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

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

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

Question:
This command return the system memory/ram size.

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

Is there any alternative of doing this?

Answer:
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:
Code:

man popen

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

linux man popen

Hope this helps.

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