i want to know if i want to learn linux,the compiler need to study yes or no,and the subject about OS,is need too???
If I understand you correctly, no you do not need to study the compiler. You can have a high degree of functionality using Linux having nevre learned the first thing about the compiler.
As for the OS, I'm not sure I understand you on that. Can you try and say it another way?
And one last thing, this should be in either the newbie forum of the *nix forum. i'll give you a chance to read this and reply, then I'm gong to move the topic to the correct forum.