REXX Tips & Tricks, Version 2.80

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The TRUENAME command

Use the nearly undocumented DOS command TRUENAME to display the true name 
of a file on the screen. For example the command 

  truename c:\os2\dll\..\install\..\..\config.sys

will print C:\CONFIG.SYS to the screen. ("nearly undocumented" because 
TRUENAME /? works but you can't find anything about it in the online help) 
Source:  The OS/2 WARP Survival Guide 
  In OS/2 REXX programs you may use the function <STREAM with the third 
 parameter set to QUERY EXISTS to achieve the same result for existing 

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