94 lines
3.0 KiB
Plaintext
94 lines
3.0 KiB
Plaintext
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The
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Fabulous
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#### #### ### ### ##########
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##### ##### ### ### ##########
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### ## ## ### ### ### ###
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### ## ## ### ### ### ########
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### ### ### ### ### ########
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### ### ## ########## ## ### ##
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### ### ## ######## ## ### ##
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List
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(MicroSoft's Undocumented Features)
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Volume 1 Number 6
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===============================================================================
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1) TRUENAME
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Internal DOS 5.0 command. Canonicalize a filename or path (using
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DOS interrupt 21h, function 60) prints the actual directory.
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SYNTAX
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TRUENAME filename prints the complete path to file
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TRUENAME directory prints the complete path to directory
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Note: If the path is in a network, it starts with a \\machine-name
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Michael Larsson
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TRUENAME is analogous to the "whence" command in the UNIX Korn
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shell. It returns the real fully qualified pathname for a command.
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TRUENAME is useful in networks, where a physical drive may be mapped
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to a logical volume, and the user needs to know the physical location
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of the file. It ignores the DOS SUBST, and JOIN commands, or network
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MAPped drives.
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It is an undocumented MS/DOS feature, but is documented in 4DOS as
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follows:
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SYNTAX (Internal DOS 5.0 / 4DOS)
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TRUENAME [d:][path]filename
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PURPOSE
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Returns a fully qualified filename.
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COMMENTS
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TRUENAME will see "through" JOIN and SUBST commands, and requires
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MS-DOS 3.0 or above.
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EXAMPLE
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The following command uses TRUENAME to get the true pathname for a
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file:
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c:\> subst d: c:\util\test
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c:\> truename d:\test.exe
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c:\util\test\test.exe
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Dennis McCunney
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TRUENAME : will reveal the full name drive and path of the filename.
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If you specify a wildcard ('*') in the filename, it will expand
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the filename to use question marks instead. If the path includes
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the ..\ sequence, TRUENAME will examine the directory structure and
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calculate the path. Stranger still, the line:
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TRUENAME \CRONK\FLIBBET\..\ART
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produces the response:
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C:\CRONK\ART
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even if the directories \CRONK\FLIBBET and the file ART don't exist!
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Don't expect this command to work across networks.
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PC Magazine #212 Pg. 48-49
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Forwarded by:
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Rodney Atkins
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===============================================================================
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