Tiny Bash Functions to Convert Between Numeric Representations

I have these functions in my aliases file. They make it easy to convert between hex, binary and decimal representations of numbers. You might find it useful.

Just add these to your aliases file (imported from ~/.bashrc):

1
2
3
4
5
6
function h2d { echo "obase=10; ibase=16; $( echo "$*" | sed -e 's/0x//g' -e 's/\([a-z]\)/\u\1/g' )" | bc; }
function h2b { echo "obase=2; ibase=16; $( echo "$*" | sed -e 's/0x//g' -e 's/\([a-z]\)/\u\1/g' )" | bc; }
function b2d { echo "obase=10; ibase=2; "$*"" | bc; }
function b2h { echo "0x$(echo "obase=16; ibase=2;"$*"" | bc)"; }
function d2b { echo "obase=2; ibase=10; "$*"" | bc; }
function d2h { echo "0x$(echo "obase=16; ibase=10; "$*"" | bc)"; }

Now you should be able to use it like this:

h2d 0xff

The output will be 255 in this case.

h2b is for “hex to binary”, the others are similar (h: hex, b: binary, d: decimal)

Enjoy ;)

If you enjoyed this post, make sure you subscribe to my RSS feed!

Post to Twitter Post to Delicious Post to Digg Post to Facebook Post to Reddit Post to StumbleUpon

No related posts.

Tags: , ,

Friday, June 12th, 2009 Bash

Leave a Reply

RSS
RSS (comments)
my email
Check my other blogs at:
http://www.off2pic.com
http://www.synsynackack.com

About Me

my photo
Hi,
My name is Amir Watad. I have a BSc. in biomedical engineering from The Biomedical Engineering school , Technion , Israel, and a BSc. in electrical engineering from The Electrical Engineering school , Technion , Israel.
I'm a Verification Engineer in Mellanox Technologies Ltd.
I love Linux, the Command Line and the OpenSource Community.
I used to write Poems (Arabic) when I was able to find time for this.

Calendar

June 2009
S M T W T F S
« May   Jul »
 123456
78910111213
14151617181920
21222324252627
282930  

Valid XHTML 1.0 Transitional

Valid CSS!

SEO Powered by Platinum SEO from Techblissonline

Twitter links powered by Tweet This v1.7.4, a WordPress plugin for Twitter.