Viewing a file:
"less [filename]"
viewing the standard output of a command:
"[command] | less"
You type "less" followed by the path-to-the-file/filename. Example: "less /etc/passwd"
At the command prompt, type 'man [command]' (removing the brackets and substituting the command for which you need information).
cp.
For Unix/Linux, use the command 'cd /' For Windows, you can also use the same command or 'cd \'
k is not a standard command in Linux.
For Linux, use the 'mv' command, which is a rename
mount
The c99 command is a wrapper program that actually calls 'cc'. This is the standard c compiler for Linux. Since other Unix based systems use a c99 command to call the compiler with the 1999 standards there is a similar command to do the same thing under Linux.
shutdown-hnow
There is no such command. Obviously, in order to enter a command into the prompt, Linux must already be on.
chmod +x is the command to set the executable flag in Linux but, Linux does not use exe files.
In a Linux terminal, the command to create a new directory is: mkdir .