For local (non-network) accounts, look at the /etc/passwd file. It contains all of the local users on that system. You can use many different commands such as less, more, cat, etc., to see the contents.
There are a series of commands, depending on what and how much information you want on logged in users. The commands are: who w users finger (if installed)
The command "finger" can tell you how many active shells are used, the users logged in, and where they logged in.
In Linux the chmod command is used to set file permissions.
In Linux, dzdo is a command used to execute a command with elevated privileges, similar to sudo. It is typically part of the "do-as" (dzdo) utility, which allows users to run commands as another user, usually the superuser, while providing a more straightforward configuration than sudo. It is often used in environments where users need temporary elevated permissions without requiring full administrative rights.
vi
date
To get information on the options used by a Linux command, you can use the man command followed by the command name, like this: man [command]. This will display the manual page for the command, detailing its options and usage. Alternatively, you can often use the --help option with the command (e.g., [command] --help) to get a brief summary of options and usage.
The 'man' or the 'info' command have documentation about utilities and commands in the system.
$
NIS
cd ls
In the context of the Linux command 'mv r', the keyword 'mv' stands for 'move', indicating that the command is used to move or rename files or directories.