When trying to use Nextcloud’s occ (ownCloud Console) command and it’s not possible to use sudo or su (installation on Debian GNU/Linux 11), you can try with the following command (you may have to change the paths to php and occ).
runuser --user www-data -- /usr/local/bin/php /var/www/html/occ user:list
This is quite possibly caused by one of the limits set too low. It is common when using promtail (with Loki for example) to tail log files.
One of the ways to get over this is to increase the value (in this example max_user_instances) either for the session or by making the change permanent by adding to a file (/etc/sysctl.conf).
For testing and doing it for the session, login to the affected server and do the following
ubuntu@server:~$ cat /proc/sys/fs/inotify/max_user_instances 128 ubuntu@server:~$ sudo sysctl fs.inotify.max_user_instances=8192 fs.inotify.max_user_instances = 8192 ubuntu@server:~$ cat /proc/sys/fs/inotify/max_user_instances 8192
To get the total number of open file descriptors use the following
awk '{print $1}' /proc/sys/fs/file-nrGet the list of zombie processes:
ps aux | awk '{if($8=="Z") print}'Get the parent process of each of the processes listed above (second column)
ps -o ppid= -p 490392
Kill the parent process from the above output
sudo kill -9 3167559
If you would like to add the EHLO to the smtp url used in curl you will have to add it at the end of the url (test.example.com), like this:
--url "smtp:/smtp-relay.gmail.com:587/test.example.com"
If you would like to split a large zip file with 7zip, in 1GB files for example, you can use the following
7z -v1g a documents_multipart.7z dir/
You have single line output that contains multiple strings (could be output from a kubectl that gives all the instance names) and you want to convert it to text that can be used as the a variable enclosed by double quotes, one string on one line and separated by commas.
So having the string in a file called input.txt:
a b c
you want to convert it to the following and save it in another file called output.txt
"a",
"b",
"c"
You can use the following:
cat input.txt | tr ' ' '\n' | sed 's/^/"/g' | sed 's/$/",/g' > output.txt
which will first replace the spaces separating the strings to newlines, and then use two passes with sed, in the first adding the first quote, and the second adding the second quote and the comma.
Use the following to convert a timestamp to a date in Linux bash
date -d @1636995741 Mo 15 Nov 2021 18:02:21 CET
To find your current resolution in a Linux shell you can use:
xdpyinfo | grep dim
dimensions: 3840×3600 pixels (1015×951 millimeters)
To use OR when you are doing a grep search use the \| characters to separate the items you are searching for.
cat text_to_search_in | grep 'first\|second\|third'