It sounds like you don't have the GD extension installed. I don't use Ubuntu any longer, but I think it may be named php5-gd,...
ls-command: how to display the file size?
ls -lah
-l use a long listing format
-a, --all do not hide entries starting with.
-h --human-readable
When used with the -l...
I've observed that running a filesystem check (fsck) on the disk doesn't permanently resolve issues, as they tend to recur within a few days.
Interestingly,...
How To Install Linux, Apache, MySQL, PHP on Ubuntu:
Set Up
The steps in this tutorial require the user to have root privileges on your...
Change key Super that launches dash in Ubuntu
First, disable the "Cmd" button, which likely corresponds to the Super (also known as Windows) key on other systems. This can be achieved with the gsettings terminal command:



