Problem with BASH and [ ! -t 0 ] test.

[Warren Block]

On Wed, 18 Feb 2009, GESBBB wrote:

> I am using this snippet of code in a bash script that is run via CRON.
>  
> <snippet>
> # See if we are running via CRON
>     if [ ! -t 0 ]
>       then
> # Use the BASH RANDOM function to generate a random number between 0 & 32767
>         RESTING=$((RANDOM/60))
>         sleep ${RESTING}
>     fi
> </snippet>
>  
>  
> It runs fine from the console; however, when run via CRON, it outputs this error message.
>  
> Tput: No terminal type specified and no TERM environmental variable.
>  
> I have Googled about, yet I cannot find an answer. Perhaps some Bash guru can assist me.

cron uses /bin/sh, not bash.

-Warren Block * Rapid City, South Dakota USA