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Make a decision as to whether a variable will be updated.
Usage: Resource list/end action list
If the expression evaluates to true then variable will be updated. Other wise the statement is ignored and the next statement is evaluated.
The operator FILE_NOT_FOUND can be used in any IF-THEN statement. It tests for the presence of one or more files and evaluates to true if the file is not present. The file name specification can include wildcards.
Format
IF expression THEN SET variable = expression
Examples
IF run_count == 5 THEN SET total=counter-5
IF FILE_NOT_FOUND test1.dat THEN set test=0