258 lines
10 KiB
Plaintext
258 lines
10 KiB
Plaintext
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DESCRIPTION
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CMDEDIT (OS2EDIT) is a program that allows editing and retrieval of the
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command line, allows commands to be assigned to functions keys, and allows
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aliases for commands to be created
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COMMAND LINE
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CMDEDIT [options] [aliasfile [cmdfile]] (DOS)
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CMDEDIT -q [cmdfile] (DOS)
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OS2EDIT (OS/2 1.x)
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OS22EDIT (OS/2 2.x)
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Options:
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-i Go to insert mode at the start of each command.
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-s Make insert mode 'sticky' between commands. (overrides -i)
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-e Always save commands at the end of the buffer.
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Normally, duplicate commands are not stored in the buffer.
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-a Use the aliases regardless of the process requesting the string.
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Normally it tries to determine if COMMAND.COM is the requesting
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process, but the check does not work properly on some systems,
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or if a subsequent command processor has been invoked.
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-f Stop completing a file name when multiple choices exist. See
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descriptions of Tab and Shift-Tab keys for details.
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-l Complete file names in lower case
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-mx Character x will be used to separate multiple commands
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-h Directory commands (u,d,o,r) must be preceded with '#'
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-\ Append '\' after directories, and ' ' after normal files
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during filename completion
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Notes:
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- If the environment variable CMDEDIT (or OS2EDIT) is set, and
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no command is given to CMDEDIT (OS2EDIT) the environment variable
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will be used as the command line.
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- [cmdfile] may be used to save the command buffer if CMDEDIT is
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unloaded then reloaded. For example:
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cmdedit -q cmd.fil
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cmdedit alias.fil cmd.fil
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will use cmd.fil to save/restore the internal command buffer.
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Notes for OS/2 1.x:
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- OS2EDIT.DLL is also loaded and needs to be in a LIBPATH directory
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(where you keep your other .DLL files)
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- You must remove the SET KEYS=ON statment from CONFIG.SYS
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or change it to SET KEYS=OFF.
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- You may not pass the command line directly to OS2EDIT. You must
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use the environment variable method to pass the command line.
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Notes for OS/2 2.x.
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- OS22EDIT is not run directly. Instead, change CONFIG.SYS as follows
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SET OS2_SHELL=[drive][path]CMD.EXE ...
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becomes
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SET OS2_SHELL=[drive][path]OS22EDIT.EXE [drive][path]CMD.EXE ...
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In this case, you must set the OS2EDIT environment variable
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in CONFIG.SYS, in order for it to be noticed by OS22EDIT.
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- Only environment variables set in CONFIG.SYS are available to
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OS22EDIT.
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- You may not pass the command line directly to OS22EDIT. You must
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use the environment variable method to pass the command line.
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This environment variable must be set in CONFIG.SYS.
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- OS2EDIT.DLL is not needed
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The default alias file name is
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none (DOS)
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C:\ALIAS.OS2 (OS/2)
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FORM OF THE ALIAS FILE
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The alias file contains records of the following form
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word string - When <word> appears as the first word on the
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command line, it will be substituted with
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<string> before being passed to DOS.
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<Fn> string - When <Fn> is hit, CMDEDIT behaves as if <string> were
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typed by you. It is inserted if you are in insert
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mode, overstrikes if not, etc..
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keys F1 thru F40 are supported.
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<Fn> !string - As above, but an <ENTER> is generated
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following string.
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Only keys F1 through F10 on the keyboard are actually used. For F11 thru
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F20, use the shift key, for F21 to F30 use Ctrl key and for F31 to F40 use
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the Alt key.
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Within the replacement string, the symbols %1 %2 ... %9 are replaceable by
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parameters. When the alias is invoked, each blank delimited word following
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the alias word is considered to be a parameter to the alias. Parameters
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which have no corresponding %n in the alias are appended to the end of the
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command. For example, if
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printps myfile lpt1
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is typed, and the alias
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printps copy preamble.ps+%1.c+eoj.ps
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is present in the alias list, the resulting DOS command would be
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copy preamble.ps+myfile.c+eoj.ps lpt1
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A symbol such as %name% within an alias will be replaced with the corresponding
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DOS or OS/2 environment variable name. For example, the alias
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addpath set path=%path%;%1
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will cause another directory to be added to your path when used.
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Aliases are substituted recursively. For example, if the aliases
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rn rename %1 %2
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bk rn %1.c %1.bak
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are present, typing
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bk foo
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is equivalent to typing
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rename foo.c foo.bak
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Recursive definitions are handled as well. The alias
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dir dir *.c
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is perfectly alright, although somewhat limited in its usefulness.
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EDITING FEATURES
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Whenever a command is executed, CMDEDIT will save the command in a buffer for
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future recall and editing. When the buffer becomes full, the oldest command is
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discarded. CMDEDIT will not save a second copy of a command that is already
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present in the buffer.
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Multiple commands
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! (or as set by -m) Separates multiple commands on a line.
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A real exclamation point must be entered as !!.
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Command Retrieval
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Key Alternate Meaning
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Cursor-Up retrieve previous command from the buffer
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Cursor-Down retrieve next command from the buffer
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Ctrl-Cursor-Up Alt-E retrieve first command from buffer
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Ctrl-Cursor-Down Alt-B retrieve last command from buffer
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Ctrl-Delete Alt-X delete the current command from the buffer
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Page-Down save the unentered command line in the buffer
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Alt-C list all commands in the buffer
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Alt-A list all current aliases
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Ctrl-Tab Alt-N retrieve next command that begins as ... see below
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Alt-Tab Alt-P retrieve previous command that begins as ...
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Ctrl-Insert Alt-Z retrieve accidentally erased line
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The Alt-Tab and Ctrl-Tab commands are used by typing the beginning of a command
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which is in the buffer then pressing the key. The entire command will then
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appear on the command line. You can press Alt-Tab again to see other commands
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starting with that prefix.
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Cursor movement
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Cursor-Left move left on command line
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Cursor-Right move right on command line
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Home move to beginning of line
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End move to end of line
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Ctrl-Cursor-Left move left word
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Ctrl-Cursor-Right move right word
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Line editing
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Insert toggle in and out of insert mode
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Delete delete character under cursor
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Ctrl-Delete delete to end of word
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Backspace delete character to left of cursor
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Ctrl-Backspace delete to beginning of word
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Escape delete input line and leave insert mode
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Ctrl-Home erase to beginning of line
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Ctrl-End erase to end of line
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Alt-H toggle the -h option interactively
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Retrieving screen items
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Alt-Cursor-Up Alt-U move a cursor up the screen
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Alt-Cursor-Down Alt-D move a cursor down the screen
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Alt-Cursor-Left Alt-L move a cursor left on the screen
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Alt-Cursor-Right Alt-R move a cursor right on the screen
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Alt-Home Alt-0 move screen cursor to column 0
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Alt-End Alt-2 retrieve two lines from screen
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This is useful for changing your path. Type path, then retrieve it from
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the screen, edit it into a command and press Enter. You can also type a
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batch file, then execute certain commands from it using this capability.
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File name completion
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Tab Complete file name
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Shift-Tab / List choices if -f option in effect.
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\ List previous file name if -f not in effect.
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These keys are used by typing the first part of a filename and then
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pressing Tab. For example, typing edit my<TAB> will expand to edit
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MYFILE.C if the file MYFILE.C is the first file starting with 'MY' in the
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current directory. If Tab is pressed before the first space on the line,
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the path is searched for a matching command. For example, typeing
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cmde<TAB> might expand to c:\lang\bin\CMDEDIT.EXE. Subsequent TABS
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will list the next file matching the pattern. Shift-Tab will back up one
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file name. With -f in effect, the file name is only completed to a point
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where a choice must be made, and Shift-Tab will list those choices. More
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characters may then by typed to differentiate between the choices and Tab
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hit again. Also the environment variable CMDMATCH controls which file
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extensions are to be matched. For example, set CMDMATCH=.C.H.ASM means
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only match files of type .C, .H and .ASM. set CMDMATCH=~.OBJ.EXE means
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match all files except those of type
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.OBJ and .EXE.
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DIRECTORY COMMANDS
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I hate typing the '\' character. It's in an awkward spot on the keyboard.
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This fact prompted me to put some support into CMDEDIT to change the
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current working directory without typing '\'. I also like to change my
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current working directory and drive as an atomic operation. In the
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directory commands, the following substitutions are made in a path.
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/ becomes \
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' ' becomes \
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- becomes ..\
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For example, "--codegen 8086 c" and "--codegen/8086/c" both become
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"..\..\codegen\8086\c".
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Commands
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d [d:]path Set current drive to d and directory to path
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o [d:]path The "over" command. Equivalent to #d [d:]..\path
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u [n] Go up n levels in the tree
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r Return to the previous drive and directory
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You can alias these commands as well. I have aliases for 'd', 'o', 'u' and
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'r' in my alias file.
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