topic Re: Hexadecimal computation in shell script in Operating System - HP-UX

Hexadecimal computation in shell script

Rui Vilao — Tue, 23 Jul 2002 09:18:38 GMT

Hi all,

I am currently working on a shell script that reads hexadecimal values from

A=987BA4
B=0000F2

I have to make computations A*B/2 and present the result in decimal.

Any suggestion how can do this within a shell script?

TIA,

Kind Regards,

Rui.

Re: Hexadecimal computation in shell script

Stefan Farrelly — Tue, 23 Jul 2002 09:35:39 GMT

Heres how to do it;

http://www.dutchworks.nl/htbin/hpsysadmin?h=3&dn=66637&q=hex%20SUMMARY&fh

Re: Hexadecimal computation in shell script

Paula J Frazer-Campbell — Tue, 23 Jul 2002 09:40:27 GMT

Hi

Also have a look at :-

od and xd.

Man od, man xd.#

Paula

Re: Hexadecimal computation in shell script

Darren Prior — Tue, 23 Jul 2002 09:46:17 GMT

bc(1) or dc(1) could be suitable for this usage:

echo "ibase=16; ($A+$B)/2" | bc

echo "16 i $A $B + 2 / p" | dc

regards,

Darren.

Re: Hexadecimal computation in shell script

H.Merijn Brand (procura — Tue, 23 Jul 2002 09:54:41 GMT

man perl
man bc
man dc

# echo "16 i AF 0E + f" | dc
189

A=987BA4
B=0000F2
C=`echo "16 i $A $B * 2 / f" | dc`

Re: Hexadecimal computation in shell script

Darren Prior — Tue, 23 Jul 2002 10:03:43 GMT

ooops - sorry. There's a typo in my examples where I used a + instead of * This also makes the brackets redundant in the bc example.