using date as a output filename in a script!!!

[gsanand]

How can I use a date function in a script, so every day when the script runs, it makes a new file with current date as its filename, so i have everydays logs to look at by date.

In other words, a have a script that runs and shows output. I have redirected this output to a file. How and what variable can i use in the script so the filename changes everyday.

[z0mbix]

touch file`date '+%m%d%y'`.tar.gz

This what you are looking for?

[Lorithar]

try this

file_date=`date +"%d%m%y" `

put ddmmyy in the param file_date

as in 200902 for 20th sept 2002

[gsanand]

both the above solutions does not seem to work. It works when i just do
date +'%y%m%d'
but it does not works thru the script.
Please advice!!

[WakeBdr]

What shell are you scripting in?

[gsanand]

im not very much familiar with Unix-Linux systems. But i think its borne shell as it shows $prompt.

[WakeBdr]

Because you say you are redirecting your output, it sounds like you are running something like

$prompt: scriptname > date

It would be easier to redirect your output in the script itself instead of on the command line.

All you would need to do is get your filename by way of the date function posted earlier, then everytime you echo something, echo it to the file.


outputFile=`/bin/date +%m%d%Y`
echo "output" > $outputFile

[gsanand]

Actually I use crotab to backup data. Now the command I run in crontab shows the list of files being backed up. Now if I use /home/gsanand/runtape >> tape_log.txt
I would live to put a date such as tape_log<date>.txt, so the logs dont get over written.

Please help!!

[WakeBdr]

Can you post your runtape script?

[gsanand]

tar cvf /dev/st0 /home/gsanand/ /public/

[WakeBdr]

Try this


#!/bin/sh

output=`/bin/date +%m%d%Y`".tar"


/bin/tar cvf $output /home/gsanand/ /public/


That should tar up /home/gsanand/ and /public/ into 09202002.tar for today.