topic Re: script to sequence log files in Operating System - HP-UX

script to sequence log files

Vin_5 — Thu, 12 Jun 2003 09:37:43 GMT

Hi,

I'm trying to simplify a script I have for sequencing files, maybe someone has one already or advice on the best way to go about it?

The script applies sequence numbers to log files each day from 001->100.

File names are of the format .log, so I want to change them to 001.log up to 100.log, and then start again at 001 by running the script each day.

Any help much appreciated,

Vin.

Re: script to sequence log files

Massimo Bianchi — Thu, 12 Jun 2003 10:02:12 GMT

Try something like this (no hpux on hands)

COUNT=1

while $COUNT < 101
do
DATE=$( date +%a%I )
touch /dir/$COUNT$DATE.log
let COUNT=COUNT+1
done

HTH,
Massimo

Re: script to sequence log files

James R. Ferguson — Thu, 12 Jun 2003 10:08:29 GMT

Hi:

Assuming that your files were named like '20030612_hhmmss' something like this would do:

#!/usr/bin/sh
typeset -i N
typeset D=`date +%Y%m%d`
cd /tmp
for F in `ls f${D}*.log`
do
(( N=N+1 ))
mv ${F} ${N}${F}
done
exit 0

Regards!

...JRF...

Re: script to sequence log files

Jean-Louis Phelix — Thu, 12 Jun 2003 10:24:52 GMT

Hi,

first of all I would create 100 empty files (001.log to 100.log). then it would be easy to run the script every day :

#!/usr/bin/sh
I=1
while [ $I -le 100 ]
do
touch $(printf "%3.3d.log" $I)
I=$((I+1))
sleep 1
done

without sleep, it seems that files could have creation time in the wrong order. It's run only once, so ...

Then, you can run this script every day. Argument should be the new log file, or you can directly get it from the script using a ls pattern or a date :

#!/usr/bin/sh
TARGET=$(ls -rt [01][0-9]*.log | line)
mv $1 $(echo $TARGET | cut -c1-3)_$1
rm $TARGET

Regards.

Re: script to sequence log files

Martin Robinson — Fri, 13 Jun 2003 07:36:36 GMT

A useful hint is the typeset command in ksh. Use 'typeset -Z3 name' to make sure the variable 'name' is always printed with 3 digits, leading zeros.

ie:
typeset -Z3 name
a=1
echo $a
001

This will simplify the filenaming side of things.