| # Coming from CMD.EXE | |
| This table was last updated for Nu 0.67.0. | |
| | CMD.EXE | Nu | Task | | |
| | ------------------------------------ | ----------------------------------------------------------------------------------- | --------------------------------------------------------------------- | | |
| | `ASSOC` | | Displays or modifies file extension associations | | |
| | `BREAK` | | Trigger debugger breakpoint | | |
| | `CALL <filename.bat>` | `<filename.bat>` | Run a batch program | | |
| | | `nu <filename>` | Run a nu script in a fresh context | | |
| | | `source <filename>` | Run a nu script in this context | | |
| | | `use <filename>` | Run a nu script as a module | | |
| | `CD` or `CHDIR` | `$env.PWD` | Get the present working directory | | |
| | `CD <directory>` | `cd <directory>` | Change the current directory | | |
| | `CD /D <drive:directory>` | `cd <drive:directory>` | Change the current directory | | |
| | `CLS` | `clear` | Clear the screen | | |
| | `COLOR` | | Set the console default foreground/background colors | | |
| | | `ansi {flags} (code)` | Output ANSI codes to change color | | |
| | `COPY <source> <destination>` | `cp <source> <destination>` | Copy files | | |
| | `COPY <file1>+<file2> <destination>` | `[<file1>, <file2>] \| each { open --raw } \| str join \| save --raw <destination>` | Append multiple files into one | | |
| | `DATE /T` | `date now` | Get the current date | | |
| | `DATE` | | Set the date | | |
| | `DEL <file>` or `ERASE <file>` | `rm <file>` | Delete files | | |
| | `DIR` | `ls` | List files in the current directory | | |
| | `ECHO <message>` | `print <message>` | Print the given values to stdout | | |
| | `ECHO ON` | | Echo executed commands to stdout | | |
| | `ENDLOCAL` | `export-env` | Change env in the caller | | |
| | `EXIT` | `exit` | Close the prompt or script | | |
| | `FOR %<var> IN (<set>) DO <command>` | `for $<var> in <set> { <command> }` | Run a command for each item in a set | | |
| | `FTYPE` | | Displays or modifies file types used in file extension associations | | |
| | `GOTO` | | Jump to a label | | |
| | `IF ERRORLEVEL <number> <command>` | `if $env.LAST_EXIT_CODE >= <number> { <command> }` | Run a command if the last command returned an error code >= specified | | |
| | `IF <string> EQU <string> <command>` | `if <string> == <string> { <command> }` | Run a command if strings match | | |
| | `IF EXIST <filename> <command>` | | Run a command if the file exists | | |
| | `IF DEFINED <variable> <command>` | | Run a command if the variable is defined | | |
| | `MD` or `MKDIR` | `mkdir` | Create directories | | |
| | `MKLINK` | | Create symbolic links | | |
| | `MOVE` | `mv` | Move files | | |
| | `PATH` | `$env.Path` | Display the current path variable | | |
| | `PATH <path>;%PATH%` | `$env.Path = ($env.Path \| prepend <path>`) | Edit the path variable | | |
| | `PATH %PATH%;<path>` | `$env.Path = ($env.Path \| prepend <path>`) | Edit the path variable | | |
| | `PAUSE` | `input "Press any key to continue . . ."` | Pause script execution | | |
| | `PROMPT <template>` | `$env.PROMPT_COMMAND = { <command> }` | Change the terminal prompt | | |
| | `PUSHD <path>`/`POPD` | `enter <path>`/`exit` | Change working directory temporarily | | |
| | `REM` | `#` | Comments | | |
| | `REN` or `RENAME` | `mv` | Rename files | | |
| | `RD` or `RMDIR` | `rm` | Remove directory | | |
| | `SET <var>=<string>` | `$env.<var> = <string>` | Set environment variables | | |
| | `SETLOCAL` | (default behavior) | Localize environment changes to a script | | |
| | `START <path>` | `explorer <path>` | Open a file as if double-clicked in File Explorer | | |
| | `TIME /T` | `date now \| format date "%H:%M:%S"` | Get the current time | | |
| | `TIME` | | Set the current time | | |
| | `TITLE` | | Set the cmd.exe window name | | |
| | `TYPE` | `open --raw` | Display the contents of a text file | | |
| | | `open` | Open a file as structured data | | |
| | `VER` | | Display the OS version | | |
| | `VERIFY` | | Verify that file writes happen | | |
| | `VOL` | | Show drive information | | |
| Before Nu version 0.67, Nu [used to](https://www.nushell.sh/blog/2022-08-16-nushell-0_67.html#windows-cmd-exe-changes-rgwood) use CMD.EXE to launch external commands, which meant that the above builtins could be run as an `^external` command. As of version 0.67, however, Nu no longer uses CMD.EXE to launch externals, meaning the above builtins cannot be run from within Nu, except for `ASSOC`, `CLS`, `ECHO`, `FTYPE`, `MKLINK`, `PAUSE`, `START`, `VER`, and `VOL`, which are explicitly allowed to be interpreted by CMD if no executable by that name exists. | |