How to use the bc command:

We can use the bc command to perform all kind of calculation right from the terminal.

$ bc
bc 1.07.1
Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006, 2008, 2012-2017 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty’.

1+2
3

10-5
5

2*5
10

10/2
5

(2+4)*5-5
25

quit
Use -l flag to define the standard math library.

$ bc -l
bc 1.07.1
Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006, 2008, 2012-2017 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty’.

3/5
.60000000000000000000

quit

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