System Variables
WHO Current UserID
  String System Variable
   
Contents String, current User ID.
   
Description This system variable contains the current UserID. On systems without user registration, it returns the value of the environment variable USER or the Network UserID.

Normally the value returned by UID and WHO variables are identical, however when running MAS90 emulation the value in WHO returns the computer network name which is what is returned in the NID system variable..

   
Example 0010 ! START_UP
0020 OPEN (1)"MYCONFIG"
0030 READ (1,KEY=WHO,ERR=0050)X$
0040 SETFID X$
0050 CLOSE (1)
->?WHO SMITHJ