Date: Wed, 18 Feb 2009 12:29:19 -0800 (PST) From: GESBBB <gesbbb@yahoo.com> To: FreeBSD Users Questions <freebsd-questions@freebsd.org> Subject: Re: Problem with BASH and [ ! -t 0 ] test. Message-ID: <644168.76348.qm@web32101.mail.mud.yahoo.com> References: <502804.7096.qm@web32108.mail.mud.yahoo.com> <499C2F76.30507@infracaninophile.co.uk>
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> From: Matthew Seaman m.seaman@infracaninophile.co.uk
> GESBBB wrote:
> | I am using this snippet of code in a bash script that is run via CRON.
> |
> |
> |
> | # 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
> |
> |
> |
> | 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.
> |
>
> jot -r 1 0 546
>
> Cheers,
>
> Matthew
I am a little confused. I believe the problem is with the "if [ ! -t 0 ]" statement. I tried to redirect the error message; however, it still appears in the email sent by CRON. I tried using this statement instead: if ( ! tty -s &> /dev/null ) and "if ( ! tty -s ) &> /dev/null"; however, they also produce an error message although the function does work correctly. Is this just something I should just ignore, or is there a way to stop the message from being sent in the CRON report?
--
Gerard
gesbbb@yahoo.com
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