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For example, in DOS 5, if the current directory is C:\TEMP, then TRUENAME command.com will display C:\TEMP\COMMAND.COM (which does not exist), not C:\DOS\COMMAND.COM (which does and is in the PATH). This command displays the UNC pathnames of mapped network or local CD drives. This command is an undocumented DOS command.
Some MS-DOS programs, including parts of the Microsoft MS-DOS shell (COMMAND.COM) and operating-system utility programs (such as EDLIN), treat a Control-Z in a text file as marking the end of meaningful data, and/or append a Control-Z to the end when writing a text file. This was done for two reasons:
MS-DOS / PC DOS and some related disk operating systems use the files mentioned here. System Files: [1] IO.SYS (or IBMBIO.COM): This contains the system initialization code and builtin device drivers; MSDOS.SYS (or IBMDOS.COM): This contains the DOS kernel. Command-line interpreter (Shell): COMMAND.COM: This is the command interpreter.
Most Forth systems run under a host operating system such as Microsoft Windows, Linux or a version of Unix and use the host operating system's file system for source and data files; the ANSI Forth Standard describes the words used for I/O. All modern Forth systems use normal text files for source, even if they are embedded.
Open the file with Windows Write or Microsoft Word, and save in "plain text" format. Similar results can be achieved with different Unix tools to change the trailing newline '\n' to a combination of carriage return and newline characters '\r\n', for example with perl or the GNU implementation of sed in-line editing:
Edlin is a line editor, and the only text editor provided with early versions of IBM PC DOS, [1] MS-DOS and OS/2. [2] Although superseded in MS-DOS 5.0 and later by the full-screen MS-DOS Editor, and by Notepad in Microsoft Windows, it continues to be included in the 32-bit versions of current Microsoft operating systems.
access multiple files in multiple panes; syntax-directed editing of C and REXX; add and multiply numbers in a marked area; locate and make a change globally within a file; select text and move, copy, overlay, or delete it; copy and move text from one file into another file; E for PC DOS consists of five files: E.EXE-- the executable program ...
JED is a text editor that makes extensive use of the S-Lang programming library and language. It is highly cross-platform compatible; JED runs on Windows and all flavors of Linux and Unix . Older versions are available for DOS .