The Joys of Linux

deepak@vyomlinux:~$ sl
The program 'sl' is currently not installed.  You can install it by typing:
sudo apt-get install sl
Make sure you have the 'universe' component enabled
bash: sl: command not found
deepak@vyomlinux:~$ apt-cache show sl
Package: sl
Priority: optional
Section: universe/games
Installed-Size: 132
Maintainer: Kenshi Muto <kmuto@debian.org>
Architecture: i386
Version: 3.03-14
Depends: libc6 (>= 2.3.2.ds1-4), libncurses5 (>= 5.4-1)
Filename: pool/universe/s/sl/sl_3.03-14_i386.deb
Size: 15976
MD5sum: de03e0be86e8d7b0c7c3b3b2cbf246ef
SHA1: 25fbec4a67ec2875852439be948704d456a557bb
SHA256: 4a7a4cf5cdbe5756226590219c4ef2ff7dce04ca9e096f5be86e8a555d83bc6c
Description: Correct you if you type `sl' by mistake
 .
 Sl is a program that can display animations aimed to correct you
 if you type 'sl' by mistake.
Bugs: mailto:ubuntu-users@lists.ubuntu.com
Origin: Ubuntu

deepak@vyomlinux:~$ sudo apt-get install sl
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  sl
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 16.0kB of archives.
After unpacking 135kB of additional disk space will be used.
Get:1 http://ftp.science.nus.edu.sg feisty/universe sl 3.03-14 [16.0kB]
Fetched 16.0kB in 5s (3004B/s)
Selecting previously deselected package sl.
(Reading database ... 102570 files and directories currently installed.)
Unpacking sl (from .../archives/sl_3.03-14_i386.deb) ...
Setting up sl (3.03-14) ...

deepak@vyomlinux:~$ sl

And the rest, you’ll have to find out for yourself :-)