CentOS related tutorial/FAQ

Linux bash exit status and how to set exit status in bash

last updated March 7, 2019 in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, Linux, Suse, UNIX

Can you explain bash exit status code? How do I set bash exit status in my Linux shell scripts?

How to find Intel NUC BIOS version and model on Linux

last updated January 26, 2019 in BASH Shell, CentOS, Debian / Ubuntu, Hardware, Linux, RedHat and Friends, Suse

I installed Linux on Intel NUC. I need to find Intel NUC BIOS version. How do I find out BIOS version, date, and model name of my Intel NUC using Linux command-line options?

Install Google Chrome 73 on CentOS 7 using yum command

last updated April 8, 2019 in CentOS, Linux, Package Management

I am a new CentOS Linux 7 desktop user. How do I install Google Chrome 72 on CentOS 7 Linux desktop?

How to override content type with Nginx web server

last updated January 21, 2019 in CentOS, Debian / Ubuntu, FreeBSD, Linux, Nginx, RedHat and Friends, Suse, UNIX

I configured Nginx server. However, it is sending the wrong content type. I need to force Nginx to send specific “Content-Type: text/xml; charset=UTF-8“. How do I configure Nginx to override content type for given URL location?

How to hide files and directories in Linux

last updated January 16, 2019 in BASH Shell, CentOS, Debian / Ubuntu, Linux, Suse

I am a new Linux user. How do I hide files and directories in Linux operating systems using the command line interface?

How to view Linux kernel parameters for currently booted system

last updated December 21, 2018 in CentOS, Debian / Ubuntu, Linux, Suse, Ubuntu Linux

How do I display or view Linux kernel parameters for currently running/booted kernel? How can I see Linux kernel command line parameters?

How do I know if my Linux is 32 bit or 64 bit?

last updated December 17, 2018 in CentOS, Debian / Ubuntu, Hardware, Linux, RedHat and Friends, Suse

I need to find out if my Linux server is running on 32-bit or 64-bit system. How do I know if my Linux is 32 bit or 64 bit?

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