command line vs instruction

command line and instruction both are nouns.

Word	Noun	Adjective	Verb	Adverb
command line	Yes	No	No	No
instruction	Yes	No	No	No

As nouns, instruction is a hypernym of command line; that is, instruction is a word with a broader meaning than command line:

command line: commands that a user types in order to run an application
instruction: (computer science) a line of code written as part of a computer program

Other hypernyms of command line include command, program line, statement.

command line (noun)	instruction (noun)
commands that a user types in order to run an application	the profession of a teacher
	the activities of educating or instructing; activities that impart knowledge or skill
	(computer science) a line of code written as part of a computer program
	a message describing how something is to be done