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Learn how to easily install WordPress on Ubuntu Server 18.04

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The old age problem of junior sysadmin or programmer

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Emacs 26.1 released

Emacs 26.1 has been released!  If you love Emacs like I do then you should be excited about this release too.

Highlights of this release include:

 - Limited form of concurrency with Lisp threads

 - Support for optional display of line numbers in the buffer

 - Emacs now uses double buffering to reduce flicker on the X Window    System

 - Flymake has been completely redesigned

 - TRAMP has a new connection method for Google Drive

 - New single-line horizontal scrolling mode

 - A systemd user unit file is provided

 - Support for 24-bit colors on capable text terminals

I wrote a blog post on how to install it from source on Ubuntu 18.04:

http://www.admintome.com/blog/install-emacs-26-1-on-ubuntu/

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Linux Shutdown Command

In this short post, I will write a little bit about the Linux shutdown command.

A more detailed overview can be found at AdminTome Blog -  Linux Shutdown Command Mastery

Using the Linux Shutdown Command

The basic use of the shutdown command is to shutdown, reboot, or halt your system.  You also specify what time you want the desired action to happen.

For example to shutdown the computer now:

$ shutdown -P now

The -P switch tells your system to --poweroff and the now means to poweroff now.  

If you wanted to reboot your system in 10 minutes you could use this example:

$ shutdown -r +10

Or if you wanted to shutdown the system at a particular time:

$ shutdown -P 18:30

This would shutdown the system at 6:30 PM ( the command uses 24 hour time in the format HH:MM ).

The Wall

Every time you run one of these commands the system will display a message to all users.  You can change the message by including it after the time parameter.  In order to change the wall message you have to run the command as root and you have to have a time parameter set.

# shutdown -r +5 The system is going down in 5 minutes do a git push now!

Cancelling a scheduled shutdown

You can cancel any scheduled command with the -c switch:

$ shutdown -c

I hope that helps you get a better understanding of the powerful Linux shutdown command.