C Execution: External View (cont)
Command-line arguments:
-
argc ... count of arguments, including command name
-
argv ... array of arguments, as text strings
File streams:
-
stdin ... standard input, by default: keyboard
-
stdout ... standard output, by default: screen
-
stderr ... standard error, by default: screen
Environment variables:
-
char *environ[] contains the env vars
- the last element in
environ[] contains NULL
|