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# options
## Instructions
6 years ago
Write a program that takes an undefined number of arguments which could be considered as options and writes on the standard output a representation of those options as groups of bytes followed by a newline.
6 years ago
- An option is an argument that begins by a `-` and have multiple characters which could be :
- abcdefghijklmnopqrstuvwxyz
- All options are stocked in a single int and each options represents a bit of that int, and should be stocked like this :
- 00000000 00000000 00000000 00000000
- ******zy xwvutsrq ponmlkji hgfedcba
6 years ago
- Launching the program without arguments or with the `-h` flag activated must print all the valid options on the standard output, as shown on one of the following examples.
6 years ago
- A wrong option must print "Invalid Option" followed by a newline.
## Expected output
```console
student@ubuntu:~/piscine/test$ go build
student@ubuntu:~/piscine/test$ ./test | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/piscine/test$ ./test -abc -ijk | cat -e
00000000 00000000 00000111 00000111$
student@ubuntu:~/piscine/test$ ./test -z | cat -e
00000010 00000000 00000000 00000000$
student@ubuntu:~/piscine/test$ ./test -abc -hijk | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/piscine/test$ ./test -% | cat -e
Invalid Option$
student@ubuntu:~/piscine/test$
6 years ago
```