Which of the following is a valid option for a typical command to get its built-in usage information?
A.
-?
B.
-H
C.
help
D.
–manual
E.
–help
Which of the following is a valid option for a typical command to get its built-in usage information?
Which of the following is a valid option for a typical command to get its built-in usage information?
A.
-?
B.
-H
C.
help
D.
–manual
E.
–help
–help
or
-h
A single hyphen can be followed by multiple single-character flags. A double hyphen prefixes a single, multicharacter option.
Actually, it works for some programs:
gzip -h or gzip -help
zip -h or zip -help
So, we ‘ve got a single hyphen for for the single multiple-character option!