How to Create Shell Calculator on Ubuntu

Requirement:

• bc package

How to:

1. Install bc package

   $ sudo apt-get install bc

2. Create shell script, name it ‘solve.sh’

   $ nano solve.sh

   And type in these lines:

   #!/bin/sh
   bc << EOF
   scale=4
   $@
   quit
   EOF

3. Test the script

   $ sh solve.sh 2+2
   4

4. Create alias ‘solve’

   $ alias solve="sh /home/user/solve.sh"

5. Test again using alias

   $ solve 2^3
   8