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- |---------------B A T C H L R N H E L P S Y S T E M-----------------|
- |command:%<name>% (within a batch processing file) |
- | |
- |use:A way of passing specific data to a batch processing file. |
- | |
- |how:Type: %<name>% to set the variable. |
- | |
- |NOTES:Variables provide another way of passing specific data to a |
- | batch processing file. Please make THIS distinction, there IS an |
- | important difference between variables and parameters. PARAMETERS |
- | are constantly changing.A variable,once declared,RETAINS its value |
- | until either you reset it or turn the PC off. Using the variable |
- | you can not only pass values to the system but to other .BAT files. |
- | A variable is a text string(a name)enclosed by % signs (%variable%) |
- | Values are given to variables with the DOS SET command. For example,|
- | if a batch file contains the statement: LINK %FILE% you can "set" |
- | %FILE% to ANOTHER name (which DOS will then recognize, having dis- |
- | carded FILE and replacing it with the new name). In the example,and |
- | to replace %FILE% you would type: SET FILE = DOFILE (DOFILE now is |
- | the variable). |
- | |
- |----------------- T I M E M A S T E R ---------------------|