Command to find files older than 1 hour

Shell Programming and Scripting
1

Hi,

Out of a list of files in a directory, I want to find the files which were created/modified more than 1 hour ago. I am using HP -UNIX and it does not support the argument -mmin. Please advise.
I am using # !/bin/sh

2

Below timestamp corresponds to YYMMDDHHMM, please adjust it for your requirement; if required, YYYYMMDDHHMMSS should work too (see man touch ).

touch -t 1412121200 /tmp/newer

(Alternatively, you could use a reference file to take its timestamp, e.g. touch -r /path/to/reffile /tmp/newer )

find /path/to/dir -type f ! -newer /tmp/newer

Make sure you "update" your /tmp/newer file accordingly if you run find again at a later date.

3

The problem is I cannot hardcode the timestamp for the temp file. Since this is a script which will run every 1 hour, I want to pick only those files which were created one hour before the current timestamp.

4

If you run the script regularly, keep the directory's last contents and compare to the actual state.

ls -1 >old
touch Xx YY
ls -1 | grep -vf old
Xx
YY
5

First see if

date "+%y%m%d%H%M%S"

will work. That will give you the current timestamp one could feed to touch.

I don't know much HP-UX, but on Linux and Solaris 10, one can temporarily change the TZ (timezone) variable.

One could (ab)use it like so:

ts=`TZ="America/Los_Angeles" date "+%y%m%d%H%M%S"`

Make sure you use an appropriate and valid Continent/City combination that is 1 hour behind your current location.

If it works, you could try touch -t $ts /tmp/newer

If the current value of TZ is something like PST8PDT, try the Continent/City combination anyway.