Differnetiate Time stamp .....

[Manikandan R]

Hi,

I want to differentiate(Subtract) time stamp of two files and i want the output in minutes ...
For ex: File 1 --> Mar 19 12:23
File 2 --> Mar 19 11:00

I want output as 83 (mins) ...... It should also take into account the date....

[Steven E. Protter]

Shalom,

You might find A. Clay Stephenson's date hammer useful in such calculations.

Perl
http://hpux.ws/merijn/caljd-2.2.pl

Shell
http://hpux.ws/merijn/caljd-2.25.sh

SEP

[john korterman]

Hi,

if you do not mind using a lot of system resources (and will not wait for a perl one-liner), try the attached scrpt.
It counts the number of seconds from a certain date back to January 1st 00:00 of a certain year, e.g. 2000:

File 1 --> Mar 19 12:23
$ ./return_seconds.sh 2000 2007 3 19 12 23 00
227535780


File 2 --> Mar 19 11:00
$ ./return_seconds.sh 2000 2007 3 19 11 00 00
227530800
$

Difference in seconds between the two:
$ echo "227535780 - 227530800" | bc
4980
$

....and converted into minutes:
$ echo "4980 / 60" | bc
83
$

regards,
John K.

[James R. Ferguson]

Hi:

This Perl snippet will output the difference between the 'mtime' of two files in minutes:

# perl -le '$f1=(stat($ARGV[0]))[9];$f2=(stat($ARGV[1]))[9];print (($f2-$f1)/60)' file1 file2

Regards!

...JRF...