	-c, --bytes=[-]NUM
		print the first NUM bytes of each file; with the leading '-', print all but the last NUM bytes of each file

	-n, --lines=[-]NUM
		print the first NUM lines instead of the first 10; with the leading '-', print all but the last NUM lines of each file

	-q, --quiet, --silent
		never print headers giving file names

	-v, --verbose
		always print headers giving file names

	-z, --zero-terminated
		line delimiter is NUL, not newline
