Linux Shell Scripting Cookbook - Third Edition

How to do it...

1. The hostname and uname commands print the hostname of the current system:

        $ hostname

Alternatively, they print the following:

        $ uname -n
        server.example.com

2. The -a option to uname prints details about the Linux kernel version, hardware architecture, and more:

        $ uname -a
        server.example.com 2.6.32-642.11.1.e16.x86_64 #1 SMP Fri Nov 18   
        19:25:05 UTC 2016 x86_64 x86_64 GNU/Linux

3. The -r option limits the report to the kernel release:

        $ uname -r
        2.6.32-642.11.1.e16.x86_64

4. The -m option prints the machine type:

        $ uname -m
        x86_64

5. The /proc/ directory holds information about the system, modules, and running processes. /proc/cpuinfo contains CPU details:

        $ cat /proc/cpuinfo
        processor     : 0
 vendor_id : GenuineIntel ...