Fish is a user friendly command line shell. It features syntax highlighting, advanced tab completion features, discoverable help, a revised shell syntax and many other features.

Fish comes with a lot of features, but I find one feature truly amazing: tab completion for command line arguments, including explanations.

I like to do almost everything from the command line, listen to music using mpg123, read email with alpine, etc.

Now I started to tweet from command line.

There are situations when you want or need a second IP on your box, for example when you are installing a firewall (In this case is always better to have two NICs but you can do it with only one)

To send messages to user that log on a Linux System, you can use the "message of the day" function. Just edit the file /etc/motd and add there the message you want the users to see each time the log into the system.

Normally, running the command "history" in a terminal will give you an output which looks like this:

To get the "rm" command to move the file(s) to trash instead of removing them completely, you must install the trash-cli utility and set an alias for "rm" to use trash-cli.

simple Nautilus Actions script to upload images to Imgur.com via right click.

Open a terminal and:

One thing I really like about GNU/Linux operating system, is that it has a lot of utilities which are easily to install, free, and secure, something other operating systems does not have.

One of those utilities is bc a handy calculator, with it you can perform easy calculations, or perform complicated calculus, you can even define your own functions, this utility is really useful.

adduser or useradd, which one should I use?

There are differences between them in some distributions, and they are the same in others, In Ubuntu they are different,

When you pass any command or even any word to type you will get as the output the type of word you have passed to it, and if it is a command it will let you know the type of command it is.

You may have heard about cron jobs, that executes a given command in a given interval, this is useful when you want the job to continue in the time, but if you need to execute a command only for this session, or for some hours, and not each time you log into the system, then watch maybe your best bet.

There are lots of times when you need to check the size of the files on your disk, and if you are a command line lover, you will want to do it from the console.

cpio is a tool to copy files from one place to another, and to create archives, (like tar), or extract files from an archive file.

The good thing is that cpio takes its input from other commands like ls, or find

So you can archive all .mp3 in your home directory by entering this command:

Ive been told its impossible to recover deleted files in Ubuntu or any Linux system on the ext3 Filesystem, this goes to show that you can easily recover files deleted, Bookmark this site for future reference if you ever delete an important file!