Find command to check no files is created within x minutes

Question

I have a NVR system that recording video surveilance into a linux server. This NVR system sometimes stops recordings (Bug) and I wanna know when that happens.

I'm looking into using the find command with a into a script and a cronjob to send me an email if no files is created within the passed 60 minutes.

The command I came up with is:

find /path/to/folder/* -name "*.ts" -mmin +0 -mmin -60 -exec echo "No New Recording Available" \; | mail -s "PP-NVR" me@server.com

But this command only sends me a list of "No New Recording Available" for the files older than 60 minutes

No New Recordinf Available
No New Recordinf Available
No New Recordinf Available
No New Recordinf Available
No New Recordinf Available
...

Can anyone please help!

EDIT: This is the script I came up with but it doesn't seem like it's working correctly:

#!/bin/sh

if test 'find /path_to_folder/* -name "*.ts" -mmin +1 -mmin -10'
then
echo "No New Recording Available" | mail -s "PP-NVR" me@server.com
fi

score 0 · Accepted Answer · edited May 23 '17 at 12:03

0

You could try combining this run a unix shell command if the output doesn't have a specific number of lines

With

vagrant@puppet ~]$ find . -name '*.ts' -mmin -1 | wc -l
0
[vagrant@puppet ~]$ touch blah.ts
[vagrant@puppet ~]$ find . -name '*.ts' -mmin -1 | wc -l
1

So:

[vagrant@puppet ~]$ ./alert.sh
No new files
[vagrant@puppet ~]$ echo >> blah.ts
[vagrant@puppet ~]$ ./alert.sh
[vagrant@puppet ~]$ cat alert.sh
#!/bin/sh

newfiles=$(find . -name '*.ts' -mmin -1 | wc -l)

if [[ $newfiles -eq 0 ]] ; then
    echo "No new files"
fi
[vagrant@puppet ~]$

edited May 23 '17 at 12:03

Community

1
1

answered Sep 17 '15 at 21:05

Donald_W

1,773
21
35

Can add the the path to my folder like: newfiles=$(find /pathtofile -name '*.ts' -mmin -1 | wc -l) ? – Youssef Karami Sep 17 '15 at 21:15
I'm getting "./Check2.sh: 5: ./Check2.sh: [[: not found " Any idea why ? – Youssef Karami Sep 17 '15 at 21:30
What do you get when you run /bin/sh --version Also uname -a – Donald_W Sep 17 '15 at 21:31
Try switch /bin/sh to /bin/bash – Donald_W Sep 17 '15 at 21:32
[[ is just a built in alias for 'test' – Donald_W Sep 17 '15 at 21:33
is it difficult to convert this script to a nagios plugin – Youssef Karami Sep 18 '15 at 15:39
I don't see why not. It's just a generic script. I think this is a different question though. Raise a new one with a little like "How do I convert a bash script into a Nagios plugin?" Or better yet run a quick search. I was able to find some examples easily enough. Welcome to Stack Overflow! – Donald_W Sep 18 '15 at 17:50
I already did but so far no luck. Here's the link http://stackoverflow.com/questions/32657539/nagios-plugin-to-check-files-are-created-within-x-minutes – Youssef Karami Sep 18 '15 at 19:12
Hi Youssef I've answered your question there. – Donald_W Sep 20 '15 at 20:13

score 0 · Answer 2 · answered Sep 17 '15 at 21:05

0

I don't have a solution using find, but you can use inotifywait (in inotify-tools) to set up a watcher, like this:

inotifywait -r -e modify -t 60 /path/to/folder

and check $? for the value 2 which means that it has timed out after 60 seconds (-t 60) without files being modified (-e modify) inside the /path/to/folder and it's sub-folders (-r).

answered Sep 17 '15 at 21:05

FrodeTennebo

531
3
13

Inotify is a Linux kernel feature. inotifyway is a utility which uses that feature. You can install it using your distribution's package management system, e.g. **apt-get install inotify.tools**. – FrodeTennebo Sep 18 '15 at 06:37

Find command to check no files is created within x minutes

2 Answers2