shell script to convert octal number to decimal numbers

Here in this article i am going to mentions a  small script to convert octal number to decimal numbers. We are going to test this script in linux.I have tested it on RedHat Linux.


In this article I we will use (()) and bc commands to do my task.

You may be excited to know that there are several tips and tricks to do that and here i am going to mention all those.


Trick1: Use (()) brace expatiation. 

Here I am going to create a file using vim editor. and write the below code.


read -p “enter OCT number: ” OCT1

echo “The decimal value of $HEX1 is $((8#$HEX1))”



Now Change permissions of script:


chmod +x


Now  run the shell script




Trick2: Using bc command



read -p ” enter OCT number: ” OCT1


echo “ibase=8; $OCT1” | bc



Save above file as


Change permissions to this script now and execute as follows


chmod +x

Executing shell script



5 thoughts on “shell script to convert octal number to decimal numbers

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