The tail command can be used to output the last part of a text file. The default is to show the last 10 lines of a file and options are available to override this.
The whoami command.
The history command displays all commands that have been entered into the terminal.
Exactly what the name says: It displays and sets the date on a Linux system.
The command pwd displays your current/present working directory.
iptable in Linux
In Linux, command typed at a command prompt displays a list of commands that would likely contain the command you desire. For example, to find all of the commands that have word flush in their name or descriptions type the following: man -k flush
The time command is used to time a command and not display the actual time. To display the time and date, the date command must be used.
In Linux the man command displays the help(man page) for a command. man fdisk is "display the man page for command fdisk"
Depending on the OS and setup, they can be different. Look at the commands: info and man
Displays the detailed status of a particular file or a file system. You can always refer manual pages for linux commands using the terminal using the "man" keyword before the actual command. ex:- man stat
The df command displays drive capacities. The free command will show memory usage. The top command will show the system load of various processes.
k is not a standard command in Linux.