In article <1126212771.682168.196490@g14g2000cwa.googlegroups. com>,
Herbert wrote:
>
>
>Hello,
>
>Could anyone answer the following questions?
>
>1. What methods can you use to capture/recover from errors in your
>scripts?
>2. How will you get the shell to output each line before execution in
>order to help debugging?
>
>Many thanks in advance!
>
>Regards
>Herbert
>

1. Check the exit status of commands you run.

2. Use the -x flag to the shell


Ted

On 8 Sep 2005 13:52:51 -0700, Herbert wrote:
> Hello,
>
> Could anyone answer the following questions?
>
> 1. What methods can you use to capture/recover from errors in your
> scripts?

I test status return code and call a function with error and message.
Function would email a message with repair procedure.

> 2. How will you get the shell to output each line before execution in
> order to help debugging?

depends on the shell, sh, ksh, csh,....

I use
set -vx
to start watching code run and
set - to stop showing what is going on.

echo statement to display variable contents if desired.

"Herbert" wrote in message
news:1126212771.682168.196490@g14g2000cwa.googlegr oups.com...
> Hello,
>
> Could anyone answer the following questions?
>
> 1. What methods can you use to capture/recover from errors in your
> scripts?
> 2. How will you get the shell to output each line before execution in
> order to help debugging?
>
> Many thanks in advance!
>
> Regards
> Herbert
>

1. Try "trap"

2. sh -x

BR Johan W