When administering Linux systems, quick information about the installed kernel and the existing hardware is often helpful. The / proc filesystem provides extensive information on the console.
Solution: Linux systems reveal a lot about themselves, you just have to know where to look. The / proc file system, for example, allows very detailed information about hardware devices and the kernel on the command line . With cat / proc / cpuinfo the system lists what it knows about the processor or processors , such as the CPU name, clock frequency or processor stepping.
Other frequently used calls are cat / proc / mounts , cat / proc / partitions /, cat / proc / meminfo, and cat / proc / zoneinfo . Just change to the / proc directory and browse around in it a bit. You will be amazed how informative Linux can be.
Even if / proc is a pseudo filesystem, there is still a man page with a lot of information about it: man proc