Sometimes you may want to print files from the command line, especially when you have lots of them.
You can use lp for that.

To print a single example.pdf file on your default printer, simply say:

lp example.pdf

lp accepts multipl...

Ubuntu 18.04 uses systemd to manage services.

There are basically two commands for listing all services and manipulating the state of a certain service: service and systemctl:

• service manages System V init scripts
• systemctl control...

With cd .. you can navigate one directory up from the one you are at now. If you use that a lot, consider some handy aliases.

Add the following lines to your ~/.bashrc:

alias ..="cd .."
alias ...="cd ../.."
alias ....="cd ../../.."
alias ...

Bookmarks for directories will be most helpful if you are forced to work in deeply nested projects. Then it's really helpful!

This makes use of the CDPATH variable. Similar to the PATH variable, which holds the list of directories which are s...

There is an option you can set so that when using the cd command, small typos are automatically corrected. Add the following to your ~/.bashrc:

# cd: autocorrect small typos and use best guess
shopt -s cdspell 

Example:

cd P...

You can write regular expressions some different ways, e.g. /regex/ and %r{regex}. For examples, look here.

Remember that it is always a good idea [to matc...

Vim allows recording a batch of commands as a macro. This is handy if you need to do the same things over and over.

Here is how:

1. Press q to enter macro mode.
2. Press a letter (not a number!) key to assign a slot to your macro.
3. You are n...

The tree command will show you the contents of a directory and all it's sub directories as a tree:

>tree
.
├── a
│   ├── file_1.txt
│   └── file_2.txt
└── b
    ├── c
    │   └── even_more.txt
    └── more.txt

3 directories, 4 files

I...

Speaker today is Henning Koch, Head of Development at makandra.

This talk will be in German with English slides.

Introduction

As web developers we work with JavaScript every day, even when our backend code uses anothe...