A user's home directory contains configuration files, data files, and directories that the user creates. System directories situated outside of the home directory are generally restricted from user modifications.
The root directory, denoted by a single leading forward slash (/), is the start of the Linux file system hierarchy.
By default, the home directory of a regular user account is located under the /home directory.
An absolute path is a file path that starts from the root directory.
An absolute path always starts with a forward slash (/).
A relative path is a file path that starts from your current working directory.
A relative path starts with the name of a file or a directory that is in the current working directory, or it might begin with the special one dot (.) or two dots (..) symbols, which are pointers to the current or the parent directory.
You can use graphical tools or the command line to copy, move, delete, search, or create shortcuts to files and directories.
You can use wildcard characters on the command line to manipulate multiple files and directories that match a pattern.
You can monitor disk usage by using the Disk Usage Analyzer application, or by using the df and du commands.