A circle is one of the simple shapes of Euclidean geometry. It is the locus of all points in a plane at a constant distance, called the radius, from a fixed point, called the center. Through any three points not on the same line, there passes one and only one circle.
A diameter is a chord passing through the center. The length of a diameter is twice the radius. A diameter is the largest chord in a circle.
Circles are simple closed curves which divide the plane into an interior and an exterior. The circumference of a circle is the perimeter of the circle, and the interior of the circle is called a disk.
Sample Shell Script To Calculate Area and Circumference of Circle
#!/bin/bash # Shell script to calulate area and Circumference of circle. # It take radius of a circle as input. # ------------------------------------------------------------------------- # Copyright (c) 2005 nixCraft project <http://cyberciti.biz/fb/> # This script is licensed under GNU GPL version 2.0 or above # ------------------------------------------------------------------------- # This script is part of nixCraft shell script collection (NSSC) # Visit http://bash.cyberciti.biz/ for more information. # ---------------------------------------------------------------------- # Lesson on Circumference of a Circle : # Visit http://www.mathgoodies.com/lessons/vol2/circumference.html echo -n "Enter the radius of a circle : " read r # use formula to get it area=$(echo "scale=2;3.14 * ($r * $r)" | bc) # use formula to get it d=$(echo "scale=2;2 * $r"|bc) circumference=$(echo "scale=2;3.14 * $d"| bc) echo "Area of circle is $area" echo "Circumference of circle is $circumference"
🐧 Get the latest tutorials on SysAdmin, Linux/Unix, Open Source, and DevOps topics via:
- RSS feed or Weekly email newsletter
- 4 comments... add one ↓
Related Shell Scripts:
| Category | List of Unix and Linux commands |
|---|---|
| Disk space analyzers | df • ncdu • pydf |
| File Management | cat • tree |
| Firewall | Alpine Awall • CentOS 8 • OpenSUSE • RHEL 8 • Ubuntu 16.04 • Ubuntu 18.04 • Ubuntu 20.04 |
| Network Utilities | NetHogs • dig • host • ip • nmap |
| OpenVPN | CentOS 7 • CentOS 8 • Debian 10 • Debian 8/9 • Ubuntu 18.04 • Ubuntu 20.04 |
| Package Manager | apk • apt |
| Processes Management | bg • chroot • cron • disown • fg • jobs • killall • kill • pidof • pstree • pwdx • time |
| Searching | grep • whereis • which |
| User Information | groups • id • lastcomm • last • lid/libuser-lid • logname • members • users • whoami • who • w |
| WireGuard VPN | Alpine • CentOS 8 • Debian 10 • Firewall • Ubuntu 20.04 |
nice and thank u
so much
ilearnt many and make
a power point for
cicumference
Nice explanation and impressive….
s there only one data structure in linux…? we cant get the floating point values, like $ for int s ther any for decimal points…?
thank for script