If you have the program in C to process data, going to bash is like swapping a large truck for a turtle. Bash will be orders of magnitude slower, and you will have to take a lot of care to pipe data all over awk, sed, tr and the like.

Bash is a terrible choice, python (or perl, or PHP) would be faster. Way faster.

Mauro
http://mauro.limeiratem.com - registered Linux User: 294521
Scripture is both history, and a love letter from God.

2015-08-10 11:42 GMT-03:00 Brent Kimberley <Brent.Kimberley@durham.ca>:

How about ihex or srec?


  Original Message
From: Giles Orr
Sent: Monday, August 10, 2015 10:32
To: GTALUG Talk
Reply To: GTALUG Talk
Subject: Re: [GTALUG] Processing a binary file with a shell script

On 10 August 2015 at 04:12, Ansar Mohammed <ansarm@gmail.com> wrote:
> Hello All,
> I am writing a bourne shell script, to read a binary file as input and take
> action depending on the contents of the file.
>
> The file is a mixture of ASCII and binary codes (such as ASCII filed lengths
> and flags).
>
> I have the processing already done in C. I would like to convert it to a
> bourne shell.
>
> Does anyone have any suggestions on what combination of tools I may be able
> to use?

If you're only trying to look at the ASCII data (and trying to process
binary data in Bash seems like a poor idea), then you may want to look
at the "strings" command:

$ strings $(which ls)

"strings" is part of the binutils package on Debian.

--
Giles
http://www.gilesorr.com/
gilesorr@gmail.com
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