TerraMaster Forum

Posted: **05 Nov 2025, 03:16**

I have a couple of cameras set to record motion events and save the videos to certain folders on my NAS (F4 210 running TOS v4.2.43), and then delete them past a certain age. I was attempting to use this script run via cron (front door as an example):

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find /mnt/md0/SecurityVideos/FrontDoor/ -type f -mtime +6 -delete

However, it wasn't working, so I attempted to run it via command line to see if I could figure out what the problem was, and I get this error:

If I remove mtime from the command then I get the same error but for -delete.

What am I doing wrong? Is it just impossible to do what I'm trying to do? It seems like the version of BusyBox find doesn't support mtime or delete, so is there a way to install a different version of find that does have those functions? Thanks for any help!

Posted: **05 Nov 2025, 06:30**

Just a suggestion: instead of -delete, use -print for testing.
Set up the command as a scheduled task via TOS control panel rather than cron. Scheduled tasks allow you to direct output for diagnostics or reporting.
This is a typical command I use:

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find /Volume1/CCTVi/ -name P*.jpg -mtime +6 -print -delete

Note I use /Volume[n]/.... addressing. I run several find commands on separate lines within 1 scheduled task (as in a script).

Posted: **05 Nov 2025, 11:43**

Thanks, I tried to find a task scheduler in the control panel but couldn't. I ended up solving it with the help of some people on a couple of discords I'm in. I wrote a shell script and just point cron to run that. So in the shell script I have:

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#!/bin/bash

NOW=`date +%s`;
echo "`date`" >> /mnt/md0/SecurityVideos/deletedfiles.txt;

for f in /mnt/md0/SecurityVideos/*/*; do
    MTIME=`date -r "$f" +%s`;
    if [ $(( $NOW - $MTIME )) -gt $(( 7 * 24*60*60 )) ]; then
        echo "$f" >> /mnt/md0/SecurityVideos/deletedfiles.txt;
        rm "$f";
    fi;
done

echos just for logging purposes. Then in cron it's just:

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00 3 * * * Ethan /mnt/md0/SecurityVideos/oldfiledeletion.sh

I did some testing (with the rm removed at first, just the echo) and it seems to be working.

Posted: **05 Nov 2025, 17:53**

Sorry, my bad - I didn't notice the tos version you were running.

TerraMaster Forum

[Help] Delete files beyond a certain age

[Help] Delete files beyond a certain age

Re: [Help] Delete files beyond a certain age

Re: [Help] Delete files beyond a certain age

Re: [Help] Delete files beyond a certain age