export command HowTo - Linux / Unix Q & A from nixCraft

Failed to set locale, defaulting to C warning message on CentOS Linux when running yum

last updated January 18, 2018 in CentOS, Linux, RedHat and Friends, Troubleshooting

Whenever I run yum command, I get an error or warning that read as Failed to set locale, defaulting to C. How do I fix this issue on CentOS 7 Linux server? Why do I get “Failed to set locale, defaulting to C” when using yum on CentOS 6 or Fedora Linux system? How do I fix it?

How to add to bash $PATH permanently on Linux

last updated November 17, 2016 in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, Linux, UNIX

I am a new Linux and bash shell user. How do I permanently set $PATH on Linux? How can I permanently add a directory to shell PATH on Linux?

How to undefine and unset a bash environment variable on Linux or Unix

last updated March 8, 2016 in BASH Shell, FreeBSD, Linux, Mac OS X, UNIX

I have set the shell variable. I no longer need the variable. How do I undefine or unset a variable in bash on a Linux or Unix-like desktop system?

Minify and Compress CSS & Javascript Files At a Linux/Unix Shell Prompt

last updated August 7, 2018 in BASH Shell, Linux, UNIX

How do I minify and compress CSS & JS files on Linux or Unix-like system using shell prompt on my server? How can I minify JavaScripts and stylesheets at shell prompt so they can download faster over the Internet without using any online tools?

CentOS Install Java SDK using yum Command

last updated March 9, 2014 in CentOS, Package Management, RedHat and Friends

How do I install JDK runtime environment on a CentOS Linux version 6.x using yum command?

Linux / Unix: Read a Man Page From Local Directory

last updated March 10, 2013 in BASH Shell, Linux, UNIX

I have a man page stored in my home directory called ~/foo.1. How do I read a $HOME/foo.1 man page file? How can I read the file called ~/foo.1 as a manpage with man command?

TCSH / CSH Shell Set PATH Variable

last updated November 29, 2017 in CentOS, csh, Debian / Ubuntu, FreeBSD, Linux, Suse, UNIX

I am a new Unix / Linux / Apple OS X user. What is my path in CSH / TCSH shell? How do I set or modify path in c shell (CSH) on Unix like operating systems?