Re: Displaying output of shell script

[Joe Sapp]

Hi Arun,

Have you read 
https://www.gnu.org/software/parallel/parallel_tutorial.html#Saving-output-into-files
?  I'm not sure how you would collect one of those file handles (e.g.,
stderr) onto one terminal for monitoring, but maybe moreutils'
`sponge` program would help.  You might also want to try --ungroup.
Should EXIT_VALUE control whether the job succeeded or failed?

Joe

On Mon, Nov 6, 2017 at 8:13 PM, Arun Vimalathithen
<vimalathithen@gmail.com> wrote:
> Hi,
>
> I have a shell script(s) (generated) that does something calls a bunch
> of curl commands in a loop and accumulates the HTTP response values to
> decide the exit value. Something similar to:-
>
> EXEC 3>&1
> EXIT_VALUE=0
> curl="curl XXXXXXXX"
> HTTP_STATUS=$curl | parse and get HTTP status
> MESSAGE="The cmd $curl executed with status $HTTP_STATUS"
>
> if [ $HTTP_STATUS -gt 204]
>   EXIT_VALUE=1
> fi
>
> echo $MESSAGE >&3
> echo EXIT_VALUE
>
> I need the contents of $MESSAGE to be displayed while the script is
> running as well (for the users to troubleshoot, etc) but I have lost
> then when I converted the script to be run through GNU parallel.
>
> Can someone please give me any pointers on where I am going wrong?
>
> Thanks,
>
> Arun
>