.Dd $Mdocdate$
.Dt CMD 8
.Os MICROSOFT WINDOWS
.Sh NAME
.Nm cmd
.Nd Windows Command Prompt
.Sh SYNOPSIS
.Nm
.Op Fl DQ
.Op Fl A|U
.Op Fl C|K Ar command
.Op Fl E Ns = Ns Ar ON|OFF
.Op Fl T Ns = Ns Ar fb
.Op Fl V Ns = Ns Ar ON|OFF
.Sh DESCRIPTION
.Nm
is a Linux wrapper for Windows Command Prompt. Its options are as follows:
.Bl -tag -width Ds
.It Fl A
Standard outputs will be redirected in ANSI.
.It Fl C Ar command
Executes the specified command and exits.
.It Fl D
Disables autorun commands.
.It Fl E Ns = Ns Ar ON|OFF
Enable or disable command extensions.
.It Fl F Ns = Ns Ar ON|OFF
Enable or disable filename completion.
.It Fl K Ar command
Executes the specified command, then become interactive.
.It Fl Q
Disables echoing commands for non-interactive modes.
.It Fl S
(TODO) command string modifier?
.It Fl T Ns = Ns Ar fb
Output will use colors as if 'color xx' was called; the first digit sets the foreground color, and the second digit sets the background color.
.It Fl U
Standard outputs will be redirected in Unicode.
.It Fl V Ns = Ns Ar ON|OFF
Enable or disable execution-time environment variable expansion.
.Sh BEHAVIORS
.Ss AUTORUN
Autorun is enabled by default, and can be disabled with the
.Fl D
flag. If enabled, the program will search registry variables
.Cd HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\AutoRun
and
.Cd HKEY_CURRENT_USER\Software\Microsoft\Command Processor\AutoRun
for commands at startup and execute them if present.
.Ss COMMAND EXTENSIONS
Command extensions are enabled by default, and can be disabled by setting
.Fl E Ns = Ns OFF .
Extensions can modify the following commands:
.Pp
.Ic DEL or Ic ERASE ,
.Ic COLOR ,
.Ic CD or Ic CHDIR ,
.Ic MD or Ic MKDIR ,
.Ic PROMPT ,
.Ic PUSHD ,
.Ic POPD ,
.Ic SET ,
.Ic SETLOCAL ,
.Ic ENDLOCAL ,
.Ic IF ,
.Ic FOR ,
.Ic CALL ,
.Ic SHIFT ,
.Ic GOTO ,
.Ic START ,
.Ic ASSOC ,
.Ic FTYPE
.Ss EXECUTION-TIME ENVIRONMENT VARIABLE EXPANSION
Execution-time environment variable expansion is disabled by default, and can be enabled by setting
.Fl V Ns = Ns OFF .
If enabled, enclosing a variable name with '!' characters will substitute the variable's value at command execution time.
.Ss FILENAME COMPLETION
Filename completion is disabled by default, and can be enabled by setting
.Fl F Ns = Ns ON .
If enabled, Ctrl-D and Ctrl-F can be used for directory and file completion respectively.
.Sh BUGS
.Nm
lacks escape characters, meaning arguments with special characters
.Em must
be enclosed in quotes.