echo T.redir: test redirections

awk=${awk-../a.out}

$awk '{ print >"foo" }' /etc/passwd
diff foo /etc/passwd || echo 'BAD: T.redir (print >"foo")'

rm -f foo
$awk '{ print >>"foo" }' /etc/passwd
diff foo /etc/passwd || echo 'BAD: T.redir (print >>"foo")'

rm -f foo
$awk 'NR%2 == 1 { print >>"foo" }
      NR%2 == 0 { print >"foo" }' /etc/passwd
diff foo /etc/passwd || echo 'BAD: T.redir (print > and >>"foo")'

rm -f foo
$awk '{ print | "cat >foo" }' /etc/passwd
diff foo /etc/passwd || echo 'BAD: T.redir (print | "cat >foo")'

# tests flush of stdout before opening pipe
echo '   head
1
2' >foo1
$awk 'BEGIN { print "   head"
	for (i = 1; i < 3; i++)
		print i | "sort" }' >foo2
diff foo1 foo2 || echo 'BAD: T.redir (buffering)'

rm -f foo[12]
$awk '{ print >"/dev/stderr" }' /etc/passwd 1>foo1 2>foo2
diff foo2 /etc/passwd || echo 'BAD: T.redir (print >"/dev/stderr")'
diff foo1 /dev/null  || echo 'BAD: T.redir (print >"/dev/stderr")'

rm -f foo[12]
$awk '{ print >"/dev/stdout" }' /etc/passwd 1>foo1 2>foo2
diff foo1 /etc/passwd || echo 'BAD: T.redir (print >"/dev/stdout")'
diff foo2 /dev/null  || echo 'BAD: T.redir (print >"/dev/stderr")'