Linux : Linux command line calculator

Here what bc, a command line calculator, comes in handy.
In this short tutorial, I will show how to do some basic calculation with bc.

First launch bc by typing bc and hitting enter. You will see bc ready to take your commands.

[root@kartook ~]# bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty’.
18+18
36

100-99
1

100*100
10000

10*2-100+52
-28