In order to zip a subdirectory in Linux you would use the zip command with the recursive flag to specify that it should add all files under that directory into the zip file. The command would then be zip -r .zip .
k is not a standard command in Linux.
There is no such command. Obviously, in order to enter a command into the prompt, Linux must already be on.
In a Linux terminal, the command to create a new directory is: mkdir .
In Linux the chmod command is used to set file permissions.
Nothing. Helo is not a recognized command in linux.
Linux does not have a limit as to the number of characters you can enter in a command.
You get a command not found. Linux is case sensitive. So, for example: The command "systemctl" will not be the same as "SystemCTL" to a shell in Linux. One will work, the other will return an error saying there's no such command.
The accronym "GNU" stands for Gnu Is not Unix. Technically speaking, it's "GNU/Linux" because Linux is the kernel, not the whole thing, we just shorten it to Linux (I do this myself, but I do know that Linux is just the kernel). It is made up of the Linux kernel and several GNU programs (try typing a basic command into a terminal with --help, chances are you could easily find one that says GNU somewhere at the bottom).
To stop heartbeat in Linux the command line will be service Heartbeat stop To start heartbeat in Linux the command line will be service Heartbeat start
The whoami command.
The man command.