Display control characters except for @key{LFD} and @key{TAB} using
@samp{^} notation and precede characters that have the high bit set with
@samp{M-}. On MS-DOS and MS-Windows, this option causes @code{cat} to
-read files ! and standard input in DOS binary mode, so the @key{CR}
-characters at the ! end of each line are also visible.
+read files and standard input in DOS binary mode, so the @key{CR}
+characters at the end of each line are also visible.
@end table