this is not helpful
Innumerable. Remember that any program on Linux can be launched from the command line, so there are as many commands as there are programs.
'set' commands vary depending on what shell program you are using. All of them (for each shell) are documented in the 'man' command or 'info' command for that shell. For example, 'man csh', et al.
program >bg
A set of instructions or commands is called a program.
tabs
They are commands. If you put a list of commands together to carry out a more detailed task, the list of commands are referred to as a program.
programs
Different commands can have different syntaxes. The most common format is 'command -a -b -c -d' or 'command -abcd'. Commands with long options will also support the syntax 'command --option --option2 --coption3'.
It is a program.
A command menu.
Utilities are programs that can run or execute. Commands are slightly different than utilities. Command refers to the name of the program and any arguments you specify to that program to change its behavior.
Commands provide access to a program's functions.