first_arg

Command line12

Objective

Write a program that outputs the first command-line argument followed by a newline.

Steps

When at least one argument is given, display the first one exactly as received.
When no argument is provided, print wrong number of arguments followed by a newline.
Do not add extra spaces, tabs, or any other characters around the output.

examples

$ ./first_arg prod is watching

prod

$ ./first_arg

wrong number of arguments

Constraints

Expected files

first_arg.c

Allowed functions

write

Tests

Run the tests to grade your code

Build

01No arguments

02Three arguments: only first printed

03Single argument

04Four arguments

05Mixed-case argument preserved as-is

first_arg

Objective

Write a program that outputs the first command-line argument followed by a newline.

Steps

When at least one argument is given, display the first one exactly as received.
When no argument is provided, print wrong number of arguments followed by a newline.
Do not add extra spaces, tabs, or any other characters around the output.

examples

$ ./first_arg prod is watching

prod

$ ./first_arg

wrong number of arguments

Constraints

Expected files

first_arg.c

Allowed functions

write

first_arg

Command line12

Objective

Write a program that outputs the first command-line argument followed by a newline.

Steps

When at least one argument is given, display the first one exactly as received.
When no argument is provided, print wrong number of arguments followed by a newline.
Do not add extra spaces, tabs, or any other characters around the output.

examples

$ ./first_arg prod is watching

prod

$ ./first_arg

wrong number of arguments

Constraints

Expected files

first_arg.c

Allowed functions

write

Tests

Run the tests to grade your code

Build

01No arguments

02Three arguments: only first printed

03Single argument

04Four arguments

05Mixed-case argument preserved as-is