LSET - a file I/O statement that moves data from memory to a
       random-access file buffer (in preparation for a PUT statement),
       left-justifies the value of a string in a string variable, or
       copies one record variable to another.
 
Tip: LSET is a way of copying one record to another without regard to
     datatype equivalence.
 
Syntax
LSET {stringvariable=stringexpression | stringexpression1=stringexpression2}
  - stringvariable is any string variable
  - stringexpression is the value assigned to stringvariable and
    left-justified
 
See Also  <PUT (FILE I/O)>  <MKD$, MKI$, MKL$, MKS$>  <RSET>