Hi
i have linux-fedora10. the mpstat or iostat or sar command doesn't work on my linux.

how can i fix it ? do i need to install a package ? i'm beginer with linux. in fact i want to read cpu usage. for example with top command. i want to read it in a C program.
in fact i want to write the output of mpstat in a text file and then extract my information from it.
can anyone help me ?

and i have a another problem : how can i write output of mpstat to a tezt file ? i know this :

but it doesn't work good for top command.

i'll thank u for helping me.

"man top"
You need to run it in batch mode - then you can redirect the output. Best done with "-n 1" as well.

mpstat is part of the sysstat package - install that.

You either don't have the sysstat package installed or you don't have /usr/bin/ in your PATH variable.

Mpstat writes it's output to stdout, so you can use indirection to append to a file.

thank u my friends.
i installed sysstat and now mpstat is working good.
i used this code:
thanks