2008-10-02 17:30:02
Like files, processes are fundamental to any UNIX® operating system. Processes are live entities executing the instructions of an executable file. Apart from executing its instructions, a process might be engaged in managing open files, processor context, address space, and data related to the program, among other things. The Linux kernel keeps complete information about a process in a process descriptor defined as struct task_struct. You can see the various fields of struct task_struct in the Linux kernel source file include/linux/sched.h. 

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