Accessing the Operating System
This chapter discusses the methods for communicating with the operating system from PV-WAVE. The main topics include:
Manipulating environment variables (UNIX/Windows)
Using SPAWN to access the operating system
Changing the current directory
The utility routines used to communicate with specific operating systems are summarized in Routines for Accessing the Operating System :
|
Method |
UNIX |
Win |
Use |
|
SPAWN |
Yes |
Yes |
Lets you spawn a child process to execute commands. The output generated by the commands can be captured in a variable for later processing by PV-WAVE. |
|
GETENV, |
Yes |
Yes |
Manipulate environment variables. |
|
SET_SYMBOL, GET_SYMBOL, DELETE_SYMBOL |
No |
No |
Manipulate DCL interpreter symbols. |
|
CD, PUSHD, |
Yes |
Yes |
Let you change the current working directory. |
