Neal,
thanks alot for going through the script I appreciated.
well, I do have error detection i disable it on the script i attached.
its like this
Chapter5(){
GZ="tar -zxf"
BZ="tar xjvf"
exec 3>&1 #Start- This to handel stderr
Chapter5_4 2>&1 1>&3 | sh $Error
Chapter5_5 2>&1 1>&3 | sh $Error
.....
.....
.....
exec 3>&- #Close - This to handel stderr
}
and the Error script look like this
sed -e " s/\(.*\) \(.*\) \(.*\)/ * [ !Error ][ \1 \2 \3 ]/"
this way i only see error output
However, trap seem a better idea i will try to use it .
i am running the script now and hope things go well
thx again
On Sat, Jul 3, 2010 at 1:10 AM, Neal Murphy <neal.p.mur...@alum.wpi.edu> wrote:
> On Friday 02 July 2010 15:11:31 Face wrote:
>> well, thank you all, i will start over and see what will happen.
>> I am using a shell script to do the book if someone could take a look
>> at it, that would be nice .
>>
>>
>> Sincerely
>
> Ah, you don't seem to have error detection in your script.
>
> After many of your actions, you could put
> || (echo "'action' failed."; exit 1)
>
> For example:
> tar -jxf ../mpfr-2.4.2.tar.bz2 >>$Logs || \
> (echo "Extracting mpfr failed."; exit 1)
> mv -v mpfr-2.4.2 mpfr | source $Msg || \
> (echo "Renaming mpfr failed."; exit 1)
>
>
> Also 'man bash' and read up on the 'trap' built-in. You can do something like:
> trap "echo \"'action' failed!\"; exit 1" ERR; action-to-take; trap "" ERR
>
> For example:
> trap "echo \"Extracting mpfr failed.\"; exit 1" ERR
> tar -jxf ../mpfr-2.4.2.tar.bz2 >>$Logs
>
> trap "echo \"Renaming mpfr failed.\"; exit 1" ERR
> mv -v mpfr-2.4.2 mpfr | source $Msg
>
> trap "" ERR
>
>
> You might have to change the script to use bash instead of sh.
>
> Cleverly crafted, you should be able to catch most of the errors when they
> happen while maintaining a readable script.
> --
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