NAME
	xtest - test file types and permissions of multiple files

SYNOPSIS
	xtest [-0bcdefghkLprSstuwx] [+bcdefghkLprSstuwx] [file ...]

DESCRIPTION
	xtest tests the file types and permissions of each specified
	file; if no file has been specified, a list file is read
	from stdin.

	Each file that passes at least one of the tests is printed to
	stdout.

OPTIONS
	-0	Use NUL byte instead of <newline> to delimit files in
		both the input and the output.

	-e	File exists.

	-f | -d | -p | -hL | -S | -s | -b | -c
		File exists and is a (regular file [-f] | directory
		[-d] | named pipe [-p] | symbolic link [-h | -L] |
		socket [-S] | non-empty file [-s] | block special [-b] |
		character special [-c]).

	-k | -g | -u | -r | -w | -x
		File exists and has (sticky(1) [-k] | setgid(2) [-g] |
		setuid(4) [-u] | read(4) [-r] | write(2) [-w] |
		execute(1) [-x]) permissions.

	-t	Input is a file descriptor and is associated with a
		terminal.

	+e	File does not exist.

	+f | +d | +p | +hL | +S | +s | +b | +c
		File does not exist or is not a (regular file [+f] |
		directory [+d] | named pipe [+p] | symbolic link [+h |
		+L] | socket [+S] | non-empty file [+s] | block special
		[+b] | character special [+c]).

	+k | +g | +u | +r | +w | +x
		File does not exist or does not have (sticky(1) [+k] |
		setgid(2) [+g] | setuid(4) [+u] | read(4) [+r] |
		write(2) [+w] | execute(1) [+x]) permissions.

	+t	Input is not a file descriptor or is not associated
		with a terminal.

RATIONALE
	+-flags are included because it is too cumbersome to use
	comm(1).

	Only one test needs to pass because this allows the user to
	represent the required condition in conjunctive normal form
	by piping together multiple instances of xtest for conjunction.
	Disjunctive normal form is not as simple.

SEE ALSO
	test(1), find(1), xargs(1)