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Changing the Bash Scripts to Bourne Scripts:URGENT


 
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# 1  
Old 08-30-2009
Changing the Bash Scripts to Bourne Scripts:URGENT

Hi,

I have to write a program to compute the checksums of files
./script.sh

I wrote the program using bash and it took me forever since I am a beginner but it works very well.

I'm getting so close to the deadline and I realised today that actually I have to use normal Bourne shell (bin/sh) and not bash(bin/bash).

Could anyone PLEASE help me to adjust my script (like replacing arrays..) I'm just getting so desperate....

I just attach a file with the script and to run the script.

PLEASE HELP me anyone! Thank you so much!
# 2  
Old 08-30-2009
Hi.

On my (Linux) system, they are the same:

Code:
> ll $(which sh)
lrwxrwxrwx 1 root root 4 Feb  9  2008 /bin/sh -> bash

/bin > ./sh
/bin > echo $0
sh
/bin > $0 --version
GNU bash, version 3.1.17(1)-release (i686-redhat-linux-gnu)
Copyright (C) 2005 Free Software Foundation, Inc.

Check this on your system.

If they're not the same, change the "shebang" on the first line:

i.e.
Code:
#!/bin/sh

and run the script (possibly with -n) to check the syntax and see where the errors are.

I found this link (from cfjohnson) about how to "simulate arrays" in shells which don't support them:

http://unix.derkeiler.com/Newsgroups...4-05/0052.html

Last edited by Scott; 08-30-2009 at 11:30 AM..
# 3  
Old 08-30-2009
Changing the Bash Scripts to Bourne Scripts:URGENT

Hi
Thank You for your email.
As you said me i tried it, but it didn't work for me. well the script is in proper Bash shell. I want it in Bourne Script. It is showing me some of the errors.

Looking for your reply soon.
Thanks.

------------------------------------------------------------------------------------
Quote:
Originally Posted by scottn
Hi.

On my (Linux) system, they are the same:

Code:
> ll $(which sh)
lrwxrwxrwx 1 root root 4 Feb  9  2008 /bin/sh -> bash

/bin > ./sh
/bin > echo $0
sh
/bin > $0 --version
GNU bash, version 3.1.17(1)-release (i686-redhat-linux-gnu)
Copyright (C) 2005 Free Software Foundation, Inc.

Check this on your system.

If they're not the same, change the "shebang" on the first line:

i.e.
Code:
#!/bin/sh

and run the script (possibly with -n) to check the syntax and see where the errors are.

No-one here, I think, really wants to trawl through your rather long script and do all this for you.
# 4  
Old 08-30-2009
Hi.

I updated my post with a link that might help. As SH doesn't support arrays, you need to work around it, and eval is a good solution.

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