Advanced Programming in UNIX environment-7-process env

1. Exit handler.

Atexit (void (* func) (void); # automatically called by exit ()

Exit () callthese functions in reverse order of their registeration. Wait function is called as usual times as it was registered.

2. Environment list

Extern char ** environ

Access to specific environment variable, use getenv () and putenv ()

3. Memory arragement

Unix Command size report the size (in bytes) of the text, data and BSS segments

 

Advanced Programming in UNIX environment-7-process env