Kbase 20530: OS-APPEND to Null Target File Gives OS-ERROR = 0
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
10/16/2008 |
|
Status: Unverified
FACT(s) (Environment):
Progress 4 GL
SYMPTOM(s):
OS-APPEND command silently fails.
OS-APPEND to Null Target File Gives OS-ERROR = 0
CAUSE:
Environment variable does not have a value.
FIX:
This code returns the value of the environment variable "ABC":
OS-APPEND "C:\TEST.TXT" VALUE(OS-GETENV("ABC") + "\TEST2.TXT").
MESSAGE OS-ERROR VIEW-AS ALERT-BOX. /* will return zero */