Re: Best way to Collect Log

On Jun 11, 3:29 pm, Stephane CHAZELAS <stephane_chaze...@xxxxxxxx>
wrote:
2008-06-11, 07:24(-07), invincible:
[...]> I have so far collected logs from my scripts using
echo ......>>LOGFILE .

I suppose there is a way through which you can define a log file at
the start of script and all the logs are then directed to that log
file. Can somebody explain me how this works ....? Apart from defining
variable LOG=location/xyz what else needs to be done in order to
accomplish this.

[...]

In a Bourne or POSIX script:

exec 3> LOGFILE

then:

echo ... >&3

or:

exec > LOGFILE

and then every standard output of every command (including echo
commands) goes to the LOGFILE without you having to do anything.

If you want to redirect the error output as well:

exec > LOGFILE 2>&1

Note that the behavior of many commands changes with to
buffering of their output when their standard output is not a
terminal (by doing the above, you make it a regular file
instead), so it may affect the ordering of the messages.

--
Stéphane

Stephane,

I basically use a ksh. How different is POSIX from ksh ?

Ciao
.

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