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os_dos.txt
*os_dos.txt* For Vim version 8.2. Last change: 2006 Mar 30 VIM REFERENCE MANUAL by Bram Moolenaar *dos* *DOS* This file documents the common particularities of the MS-DOS and Win32 versions of Vim. Also see |os_win32.txt| and |os_msdos.txt|. 1. File locations |dos-locations| 2. Using backslashes |dos-backslash| 3. Standard mappings |dos-standard-mappings| 4. Screen output and colors |dos-colors| 5. File formats |dos-file-formats| 6. :cd command |dos-:cd| 7. Interrupting |dos-CTRL-Break| 8. Temp files |dos-temp-files| 9. Shell option default |dos-shell| ============================================================================== 1. File locations *dos-locations* If you keep the Vim executable in the directory that contains the help and syntax subdirectories, there is no need to do anything special for Vim to work. No registry entries or environment variables need to be set. Just make sure that the directory is in your search path, or use a shortcut on the desktop. Your vimrc files ("_vimrc" and "_gvimrc") are normally located one directory up from the runtime files. If you want to put them somewhere else, set the environment variable $VIM to the directory where you keep them. Example: > set VIM=C:\user\piet Will find "c:\user\piet\_vimrc". Note: This would only be needed when the computer is used by several people. Otherwise it's simpler to keep your _vimrc file in the default place. If you move the executable to another location, you also need to set the $VIM environment variable. The runtime files will be found in "$VIM/vim{version}". Example: > set VIM=E:\vim Will find the version 8.2 runtime files in "e:\vim\vim82". Note: This is _not_ recommended. The preferred way is to keep the executable in the runtime directory. If you move your executable AND want to put your "_vimrc" and "_gvimrc" files somewhere else, you must set $VIM to where you vimrc files are, and set $VIMRUNTIME to the runtime files. Example: > set VIM=C:\usr\piet set VIMRUNTIME=E:\vim\vim82 Will find "c:\user\piet\_vimrc" and the runtime files in "e:\vim\vim82". See |$VIM| and |$VIMRUNTIME| for more information. You can set environment variables for each user separately through the System Properties dialog box. The steps to do that: 1. Type Windows Key + R to open the "Run" dialog box. 2. Enter "sysdm.cpl" and press the "OK" button. The "System Properties" dialog box will open. 3. Select the "Advanced" tab and press the "Environment Variables..." button. The "Environment Variables" dialog box will open. 4. Select an existing variable in the "User variables" list and press the "Edit..." button to edit it. Or press the "New..." button to add a new variable. 5. After you finished editing variables, press the "OK" button to save the changes. ============================================================================== 2. Using backslashes *dos-backslash* Using backslashes in file names can be a problem. Vi halves the number of backslashes for some commands. Vim is a bit more tolerant and does not remove backslashes from a file name, so ":e c:\foo\bar" works as expected. But when a backslash occurs before a special character (space, comma, backslash, etc.), Vim removes the backslash. Use slashes to avoid problems: ":e c:/foo/bar" works fine. Vim replaces the slashes with backslashes internally to avoid problems with some MS-DOS programs and Win32 programs. When you prefer to use forward slashes, set the 'shellslash' option. Vim will then replace backslashes with forward slashes when expanding file names. This is especially useful when using a Unix-like 'shell'. ============================================================================== 3. Standard mappings *dos-standard-mappings* The mappings for CTRL-PageUp and CTRL-PageDown have been removed, they now jump to the next or previous tab page |<C-PageUp>| |<C-PageDown>| If you want them to move to the first and last screen line you can use these mappings: key key code Normal/Visual mode Insert mode ~ CTRL-PageUp <M-N><M-C-D> H <C-O>H CTRL-PageDown <M-N>v L$ <C-O>L<C-O>$ Additionally, these keys are available for copy/cut/paste. In the Win32 and DJGPP versions, they also use the clipboard. Shift-Insert paste text (from clipboard) *<S-Insert>* CTRL-Insert copy Visual text (to clipboard) *<C-Insert>* CTRL-Del cut Visual text (to clipboard) *<C-Del>* Shift-Del cut Visual text (to clipboard) *<S-Del>* CTRL-X cut Visual text (to clipboard) These mappings accomplish this (Win32 and DJGPP versions of Vim): key key code Normal Visual Insert ~ Shift-Insert <M-N><M-T> "*P "-d"*P <C-R><C-O>* CTRL-Insert <M-N><M-U> "*y Shift-Del <M-N><M-W> "*d CTRL-Del <M-N><M-X> "*d CTRL-X <C-X> "*d Or these mappings (non-Win32 version of Vim): key key code Normal Visual Insert ~ Shift-Insert <M-N><M-T> P "-dP <C-R><C-O>" CTRL-Insert <M-N><M-U> y Shift-Del <M-N><M-W> d CTRL-Del <M-N><M-X> d When the clipboard is supported, the "* register is used. ============================================================================== 4. Screen output and colors *dos-colors* The default output method for the screen is to use bios calls. This works right away on most systems. You do not need ansi.sys. You can use ":mode" to set the current screen mode. See |:mode|. To change the screen colors that Vim uses, you can use the |:highlight| command. The Normal highlight group specifies the colors Vim uses for normal text. For example, to get grey text on a blue background: > :hi Normal ctermbg=Blue ctermfg=grey See |highlight-groups| for other groups that are available. A DOS console does not support attributes like bold and underlining. You can set the color used in five modes with nine terminal options. Note that this is not necessary since you can set the color directly with the ":highlight" command; these options are for backward compatibility with older Vim versions. The |'highlight'| option specifies which of the five modes is used for which action. > :set t_mr=^V^[\|xxm start of invert mode :set t_md=^V^[\|xxm start of bold mode :set t_me=^V^[\|xxm back to normal text :set t_so=^V^[\|xxm start of standout mode :set t_se=^V^[\|xxm back to normal text :set t_us=^V^[\|xxm start of underline mode :set t_ue=^V^[\|xxm back to normal text :set t_ZH=^V^[\|xxm start of italics mode :set t_ZR=^V^[\|xxm back to normal text ^V is CTRL-V ^[ is <Esc> You must replace xx with a decimal code, which is the foreground color number and background color number added together: COLOR FOREGROUND BACKGROUND ~ Black 0 0 DarkBlue 1 16 DarkGreen 2 32 DarkCyan 3 48 DarkRed 4 64 DarkMagenta 5 80 Brown, DarkYellow 6 96 LightGray 7 112 DarkGray 8 128 * Blue, LightBlue 9 144 * Green, LightGreen 10 160 * Cyan, LightCyan 11 176 * Red, LightRed 12 192 * Magenta, LightMagenta 13 208 * Yellow, LightYellow 14 224 * White 15 240 * * Depending on the display mode, the color codes above 128 may not be available, and code 128 will make the text blink. When you use 0, the color is reset to the one used when you started Vim (usually 7, lightgray on black, but you can override this. If you have overridden the default colors in a command prompt, you may need to adjust some of the highlight colors in your vimrc---see below). This is the default for t_me. The defaults for the various highlight modes are: t_mr 112 reverse mode: Black text (0) on LightGray (112) t_md 15 bold mode: White text (15) on Black (0) t_me 0 normal mode (revert to default) t_so 31 standout mode: White (15) text on DarkBlue (16) t_se 0 standout mode end (revert to default) t_czh 225 italic mode: DarkBlue text (1) on Yellow (224) t_czr 0 italic mode end (revert to default) t_us 67 underline mode: DarkCyan text (3) on DarkRed (64) t_ue 0 underline mode end (revert to default) These colors were chosen because they also look good when using an inverted display, but you can change them to your liking. Example: > :set t_mr=^V^[\|97m " start of invert mode: DarkBlue (1) on Brown (96) :set t_md=^V^[\|67m " start of bold mode: DarkCyan (3) on DarkRed (64) :set t_me=^V^[\|112m " back to normal mode: Black (0) on LightGray (112) :set t_so=^V^[\|37m " start of standout mode: DarkMagenta (5) on DarkGreen (32) :set t_se=^V^[\|112m " back to normal mode: Black (0) on LightGray (112) ============================================================================== 5. File formats *dos-file-formats* If the 'fileformat' option is set to "dos" (which is the default), Vim accepts a single <NL> or a <CR><NL> pair for end-of-line (<EOL>). When writing a file, Vim uses <CR><NL>. Thus, if you edit a file and write it, Vim replaces <NL> with <CR><NL>. If the 'fileformat' option is set to "unix", Vim uses a single <NL> for <EOL> and shows <CR> as ^M. You can use Vim to replace <NL> with <CR><NL> by reading in any mode and writing in Dos mode (":se ff=dos"). You can use Vim to replace <CR><NL> with <NL> by reading in Dos mode and writing in Unix mode (":se ff=unix"). Vim sets 'fileformat' automatically when 'fileformats' is not empty (which is the default), so you don't really have to worry about what you are doing. |'fileformat'| |'fileformats'| If you want to edit a script file or a binary file, you should set the 'binary' option before loading the file. Script files and binary files may contain single <NL> characters which Vim would replace with <CR><NL>. You can set 'binary' automatically by starting Vim with the "-b" (binary) option. ============================================================================== 6. :cd command *dos-:cd* The ":cd" command recognizes the drive specifier and changes the current drive. Use ":cd c:" to make drive C the active drive. Use ":cd d:\foo" to go to the directory "foo" in the root of drive D. Vim also recognizes UNC names if the system supports them; e.g., ":cd \\server\share\dir". |:cd| ============================================================================== 7. Interrupting *dos-CTRL-Break* Use CTRL-Break instead of CTRL-C to interrupt searches. Vim does not detect the CTRL-C until it tries to read a key. ============================================================================== 8. Temp files *dos-temp-files* Only for the 16 bit and 32 bit DOS version: Vim puts temporary files (for filtering) in the first of these directories that exists and in which Vim can create a file: $TMP $TEMP C:\TMP C:\TEMP current directory For the Win32 version (both console and GUI): Vim uses standard Windows functions to obtain a temporary file name (for filtering). The first of these directories that exists and in which Vim can create a file is used: $TMP $TEMP current directory ============================================================================== 9. Shell option default *dos-shell* The default for the 'sh' ('shell') option is "command.com" on Windows 95 and "cmd.exe" on Windows NT. If SHELL is defined, Vim uses SHELL instead, and if SHELL is not defined but COMSPEC is, Vim uses COMSPEC. Vim starts external commands with "<shell> /c <command_name>". Typing CTRL-Z starts a new command subshell. Return to Vim with "exit". |'shell'| |CTRL-Z| If you are running a third-party shell, you may need to set the |'shellcmdflag'| ('shcf') and |'shellquote'| ('shq') or |'shellxquote'| ('sxq') options. Unfortunately, this also depends on the version of Vim used. For example, with the MKS Korn shell or with bash, the values of the options should be: DOS 16 bit DOS 32 bit Win32 ~ 'shellcmdflag' -c -c -c 'shellquote' " 'shellxquote' " For Dos 16 bit this starts the shell as: <shell> -c "command name" >file For Win32 as: <shell> -c "command name >file" For DOS 32 bit, DJGPP does this internally somehow. When starting up, Vim checks for the presence of "sh" anywhere in the 'shell' option. If it is present, Vim sets the 'shellcmdflag' and 'shellquote' or 'shellxquote' options will be set as described above. vim:tw=78:ts=8:noet:ft=help:norl:
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