When you call a command like this:
sudo someCommand
and you get an error message saying Cannot Connect to X Server, while if you executed that command without the sudo it would execute properly, you can resolve this issue by replacing “sudo” with “xgd-su -u root -c” resulting the following command:
xgd-su -u root -c someCommand
xdg-su provides a graphical dialog that prompts the user for a password to run a command as another user.
while true; do echo 'Hit CTRL+C to exit'; someCommand; someOtherCommand; sleep 1; done
alternative syntax
while :; do echo 'Hit CTRL+C to exit'; someCommand; someOtherCommand; sleep 1; done
You can get a User’s User ID (UID), main Group ID (GID) and Supplementary Groups using the id command.
id useraccount
In the folder <Installation Path>/wp-includes/ there is a file called functions.php, inside this file there is a function called get_allowed_mime_types().
This function is in charge of defining an Array of mime types keyed by the file extension with a regex corresponding to those types.
So in order to add a new file-type to the white-list you just have to add a new line with the following format in the list:
'jpg|jpeg|jpe' => 'image/jpeg',
Where, on the left you define the extensions you want to be accepted separated by the vertical bar character (“|”) and on the right you give a file definition.
