topic Re: Awk output redirection? in Operating System - HP-UX

Awk output redirection?

Boudewijn — Fri, 18 Jan 2002 10:20:45 GMT

Hi,

I have a simple awk statement in my script which checks some stuff. If i run the statemtn from the command line i get exactly the output i want.

The problem is when i put it in the script and try to redirect the output to a file. It doesnt work.
awk '{if ( $2 == "Z" ) print $0}

How do i get the output to append to a logfile which i need to declare in a variable in the script or within the awk statement?

Re: Awk output redirection?

Steven Sim Kok Leong — Fri, 18 Jan 2002 10:24:46 GMT

Hi,

Hope I get you right.

Script:
====================================
LOGFILE=/var/adm/syslog/mylog

awk '{if ( $2 == "Z" ) print $0} >> $LOGFILE
====================================

Hope this helps. Regards.

Steven Sim Kok Leong

Re: Awk output redirection?

Mark Greene_1 — Fri, 18 Jan 2002 10:24:49 GMT

try this:

eval " awk '{if ( $2 == "Z" ) print $0} " >> logfile

--
mark

Re: Awk output redirection?

Paula J Frazer-Campbell — Fri, 18 Jan 2002 10:25:00 GMT

Hi

awk '{if ( $2 == "Z" ) print $0} >> /tmp/logfile

Paula

Re: Awk output redirection?

Steven Sim Kok Leong — Fri, 18 Jan 2002 10:42:59 GMT

Hi,

Btw, I notice that you missed out the ending single-quote in your awk command. Perhaps a typo?

awk '{if ( $2 == "Z" ) print $0}'

Hope this helps. Regards.

Steven Sim Kok Leong

Re: Awk output redirection?

Boudewijn — Fri, 18 Jan 2002 12:04:44 GMT

The problem at the moment is that if i specify a relative PATH it works, but when I declare a variable like LOGFILE="/export/...." and then redirect the output to ${LOGFILE} then i get nothing.

Re: Awk output redirection?

Carlos Fernandez Riera — Fri, 18 Jan 2002 12:11:41 GMT

LOGFILE=/export/.....

export LOGFILE

## redirection outside awk
awk ' $2 == "ZZ" { print $0 }' file >> $LOGFILE

## redirection inside awk

awk ' $2 == "Z" { print $0 >> log}' log=$LOGFILE file

Re: Awk output redirection?

Boudewijn — Fri, 18 Jan 2002 13:01:15 GMT

Thx for all the help but it was osmthing very VERY stupid. I forgot one directory in my path.

Explains why the relative worked and the absolute path didnt. the files were one dir. up :)

But thx alot anyway!!