10 Funny Commands of Linux or Linux is Fun in Terminal
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Linux is fun! Huh. OK, so you don’t believe me. Mind me at the end of this article you will have to believe that Linux is actually a fun box.
1. Command: sl (Steam Locomotive)
You might be aware of command ‘ls‘ the list command, which is used frequently to view the contents of a folder but because of miss-typing sometimes you would result in ‘sl‘, how about getting a little fun in the terminal and not “command not found“.
Install sl
$ sudo apt install sl [On Debian/Ubuntu & Mint] $ sudo yum install sl [On CentOS/RHEL 7] $ sudo dnf install sl [On CentOS/RHEL 8 & Fedora] $ sudo pacman -S sl [On Arch Linux] $ sudo pkg_add -v sl [On FreeBSD]
Output
root@techfunia:~# sl
This command works even when you type ‘LS‘ and not ‘ls‘.
2. Command: telnet
No! No!! it is not as much complex as it seems. You would be familiar with telnet. Telnet is a text-oriented bidirectional network protocol over a network. Here is nothing to be installed. What you should have is a Linux box and a working Internet.
root@techfunia:~# telnet towel.blinkenlights.nl [No longer working]
3. Command: fortune
what about getting your random fortune, sometimes funny in terminal.
Install fortune
$ sudo apt install fortune [On Debian/Ubuntu & Mint] $ sudo yum install fortune [On CentOS/RHEL 7] $ sudo dnf install fortune [On CentOS/RHEL 8 & Fedora] $ sudo pacman -S fortune [On Arch Linux] $ sudo pkg_add -v fortune [On FreeBSD]
root@techfunia:~# fortune You're not my type. For that matter, you're not even my species!!! Future looks spotty. You will spill soup in the late evening. You worry too much about your job. Stop it. You are not paid enough to worry. Your love life will be... interesting.
4. Command: rev (Reverse)
It reverses every string given to it, is not it funny.
root@techfunia:~# rev 123abc cba321 xuniL eb ot nrob born to be Linux
5. Command: factor
Time for some Mathematics, this command output all the possible factors of a given number.
root@techfunia:~# factor 5 5 5: 5 12 12: 2 2 3 1001 1001: 7 11 13 5442134 5442134: 2 2721067
6. Command: script
OK fine this is not a command and a script but it is nice.
root@techfunia:~# for i in {1..12}; do for j in $(seq 1 $i); do echo -ne $i×$j=$((i*j))\\t;done; echo;done
1×1=1
2×1=2 2×2=4
3×1=3 3×2=6 3×3=9
4×1=4 4×2=8 4×3=12 4×4=16
5×1=5 5×2=10 5×3=15 5×4=20 5×5=25
6×1=6 6×2=12 6×3=18 6×4=24 6×5=30 6×6=36
7×1=7 7×2=14 7×3=21 7×4=28 7×5=35 7×6=42 7×7=49
8×1=8 8×2=16 8×3=24 8×4=32 8×5=40 8×6=48 8×7=56 8×8=64
9×1=9 9×2=18 9×3=27 9×4=36 9×5=45 9×6=54 9×7=63 9×8=72 9×9=81
10×1=10 10×2=20 10×3=30 10×4=40 10×5=50 10×6=60 10×7=70 10×8=80 10×9=90 10×10=100
11×1=11 11×2=22 11×3=33 11×4=44 11×5=55 11×6=66 11×7=77 11×8=88 11×9=99 11×10=110 11×11=121
12×1=12 12×2=24 12×3=36 12×4=48 12×5=60 12×6=72 12×7=84 12×8=96 12×9=108 12×10=120 12×11=132 12×12=144
7. Command: Cowsay
An ASCII cow in the terminal will say whatever you want.
Install Cowsay
$ sudo apt install cowsay [On Debian/Ubuntu & Mint] $ sudo yum install cowsay [On CentOS/RHEL 7] $ sudo dnf install cowsay [On CentOS/RHEL 8 & Fedora] $ sudo pacman -S cowsay [On Arch Linux] $ sudo pkg_add -v cowsay [On FreeBSD]
Output
root@techfunia:~# cowsay I Love nix
____________
< I Love nix >
------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
How about pipelining ‘fortune command‘, described above with cowsay?
root@techfunia:~# fortune | cowsay
_________________________________________
/ Q: How many Oregonians does it take to \
| screw in a light bulb? A: Three. One to |
| screw in the light bulb and two to fend |
| off all those |
| |
| Californians trying to share the |
\ experience. /
-----------------------------------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
Note: ‘|‘ is called pipeline instruction and it is used where the output of one command needs to be the input of another command. In the above example, the output of the ‘fortune‘ command acts as an input of the ‘cowsay‘ command. This pipeline instruction is frequently used in scripting and programming.
xcowsay is a graphical program that response similar to cowsay but in a graphical manner, hence it is X of cowsay.
$ sudo apt install xcowsay [On Debian/Ubuntu & Mint] $ sudo yum install xcowsay [On CentOS/RHEL 7] $ sudo dnf install xcowsay [On CentOS/RHEL 8 & Fedora] $ sudo pacman -S xcowsay [On Arch Linux] $ sudo pkg_add -v xcowsay [On FreeBSD]
Output
root@techfunia:~# xcowsay I Love nix
cowthink is another command just run “cowthink Linux is sooo funny” and see the difference in the output of cowsay and cowthink.
Output
root@techfunia:~# cowthink ....Linux is sooo funny
_________________________
( ....Linux is sooo funny )
-------------------------
o ^__^
o (oo)\_______
(__)\ )\/\
||----w |
|| ||
8. Command: yes
It is funny but useful as well, especially in scripts and for System Administrators where an automated predefined response can be passed to the terminal or generated.
root@techfunia:~# yes I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux I Love Linux
Note: (Till you interrupt i.e ctrl+c).
9. Command: cmatrix
You might have seen the Hollywood movie ‘matrix‘ and would be fascinated with the power, Neo was provided with, to see anything and everything in the matrix or you might think of an animation that looks like Hacker‘s desktop.
Install cmatrix
$ sudo apt install cmatrix [On Debian/Ubuntu & Mint] $ sudo yum install cmatrix [On CentOS/RHEL 7] $ sudo dnf install cmatrix [On CentOS/RHEL 8 & Fedora] $ sudo pacman -S cmatrix [On Arch Linux] $ sudo pkg_add -v cmatrix [On FreeBSD]
Output
root@techfunia:~# cmatrix
10. Command: oneko
OK so you believe that the mouse pointer of Linux is the same silly black/white pointer were no animation lies then I fear you could be wrong. “oneko” is a package that will attach a “Jerry” with your mouse pointer and moves along with you pointer.
Install oneko
$ sudo apt install oneko [On Debian/Ubuntu & Mint] $ sudo yum install oneko [On CentOS/RHEL 7] $ sudo dnf install oneko [On CentOS/RHEL 8 & Fedora] $ sudo pacman -S oneko [On Arch Linux] $ sudo pkg_add -v oneko [On FreeBSD]
Output
root@techfunia:~# oneko
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