printargs

A program showing use of the cli package to read/print commandline arguments and environment variables.

How to Compile

With a minimal Pony installation, in the same directory as this README file run ponyc. You should see content building the necessary packages, which ends with:

...
Generating
 Reachability
 Selector painting
 Data prototypes
 Data types
 Function prototypes
 Functions
 Descriptors
Optimising
Writing ./printargs.o
Linking ./printargs

How to Run

Once printargs has been compiled, in the same directory as this README file run ./printargs. You should an echo of your command along with arguments followed by your environment variables. (You will likely have far more environment variables than what is shown below.)

$ ./printargs
./printargs This is a test
...
SHELL = /bin/bash
USER = ryan
HOME = /home/ryan
LANGUAGE = en_US
...

Program Modifications

Modify the program to take commands which print only arguments or environment variables.

$ ./printargs args This is a test
./printargs args This is a test

$ ./printargs env
...
SHELL = /bin/bash
USER = ryan
HOME = /home/ryan
LANGUAGE = en_US
...