topic script output to both log file and to my screen window.. in Operating System - HP-UX

script output to both log file and to my screen window..

Stuart Abramson_2 — Mon, 02 Feb 2004 10:18:10 GMT

We have set some scripts up to log all of their output to log files, because we lost some log files in the past:

>
> LOGDIR=/var/opt/timefinder/logs
> SCRIPT=$(basename $0 .ksh)
> BCVSET=$1
> LOGDATE=$(date +%m%d%y-%H%M)
> LOG=${LOGDIR}/${SCRIPT}_${BCVSET}.${LOGDATE}.log
> exec 2>${LOG}
> exec >&2
>
> (script commands)
>

So, all of the script output goes to $LOGDIR/script_name_date.log

But, when I run the script manually (to test changes, etc), I want the output to go to my screen window (and to the log file..)..

Can I do something, in the script, like:

> exec 1>${LOG} 2>&1 tee "screen window"

Stuart

Re: script output to both log file and to my screen window..

Steve Steel — Mon, 02 Feb 2004 10:25:42 GMT

Hi

from man

SYNOPSIS
tee [-i] [-a] [file] ...

DESCRIPTION
The tee command transcribes the standard input to the standard output
and makes copies in the files

EXAMPLES
Write a list of users to the screen and also append the list to the
file hunt:

who | tee -a hunt

Thus
command 2>&1|tee -a $LOG

Steve Steel

Re: script output to both log file and to my screen window..

Chris Wilshaw — Mon, 02 Feb 2004 10:26:06 GMT

You'd need to use

exec 2>&1 | tee -a ${LOG}

This displays to screen, and appends to the log.

Re: script output to both log file and to my screen window..

Leif Halvarsson_2 — Mon, 02 Feb 2004 10:27:43 GMT

Hi,

Try with removing the exec commands from the script. When you want the output to log file only:
script >logfile
To screen AND logfile:
script | tee -a logfile

Re: script output to both log file and to my screen window..

Graham Cameron_1 — Mon, 02 Feb 2004 10:27:57 GMT

Stuart

Can't think of a quick way to do exactly what you ask, but how about?

tail -f $LOGDIR/script_name_date.log

-- Graham

Re: script output to both log file and to my screen window..

Michael Schulte zur Sur — Mon, 02 Feb 2004 10:30:59 GMT

Hi,

my suggestion would be:
> exec 2>&1 | tee -a ${LOG}

Michael