Hi All,
Is it possible to get teh julian date a file was created(modified) ? For example, I could get the julian date of today by date +%j which gives 237.The last day of the year is 365. I want to specify a condition in a script, if the sysdate(julian) minus julian date of FOLDER>14, then do something...

How do I do this?

Thanks a lot

Kayzone

In short,I just want to check if the difference between present date and the date of file creation is greater than 14.Any other approach is welcome.

Thanks

Kayzone

Have you thought about creating a file with a mod time of 14 days ago:

# file created for Aug 8
touch -t 200608110000 /tmp/myfile

# and then use find's newer option:

find . -type f -newer /tmp/myfile -print

The -newer solution requires you to specify the 2-weeks-old date, which of course will change daily.

Just use -mtime for finding files either older than or less than 14 days of age:

find . -type f -mtime -14
find . -type f +mtime +14

The command:

expr $(date +%s) - $(date +%s -r file.txt)

gives you the difference in seconds between the current time and last modification time of file.txt file

%s seconds since `00:00:00 1970-01-01 UTC' (a GNU extension)

Example script:

#!/bin/ksh

FILE=file.txt

if [ `expr $(date +%s) - $(date +%s -r $FILE)` -gt 1209600 ]; then
echo "Last modification time of $FILE is more than 14 days ago"
else
echo "Last modification time of $FILE is less than 14 days ago"
fi

Luke Chi