A
'-' turns the option on, while
'
+' turns it off.
Table 6-1. Declare options
|
Option
|
Meaning
|
|---|
|
-a
|
The variables are treated as arrays
|
|
-f
|
Use function names only
|
|
-F
|
Display function names without definitions
|
|
-i
|
The variables are treated as integers
|
|
-r
|
Makes
the variables read-only ,cann't be unset
|
|
-x
|
Marks the variables for export via the
environment
|