ico files from the Windows directory instead of the folder where the batch file resides. if it includes the line DEL *.ico, that will delete. This can be dangerous if your batch file makes any assumptions about the current directory,Į.g. Launching a batch file from a UNC path will implicitly run CMD.exe with that UNC path, this will often return the error: path is an invalid current directory path. While most command line utilities do fully support UNC paths, they cannot be set as the current directory. Launching CMD/batch files from a UNC path ErrorLevelĬMD /C will return an errorlevel, for example CMD /c dir Z: where the drive Z: does not exist, will return %errorlevel% = 1 to the calling CMD shell. If you start a second nested CMD shell (or PowerShell), this will be added to the TITLE of the CMD/terminal window, when you EXIT back to the initial shell, the Title will also revert making it possible to track how many nested shells you have open. In Windows Explorer, you can type " cmd" in the address bar to open a prompt at the current location.įor more detail about the CMD shell: QuickEdit, handing quotes, max line length etc, see the CMD Syntax page. Separated by the command separator '&' or ' &' are accepted if surrounded by quotes. Processed as an immediate command in the new shell. If /C or /K is specified, then the remainder of the command line is This allows a FOR loop to specify !variable! instead of %variable%Įxpanding the variable at execution time instead of at input time.ĭelayed Environment expansion can also be set with SETLOCAL V:ON Enable delayed environment variable expansion Will be removed, whether /s is specified or not. If command starts with a quote, the first and last quote chars in command S Strip " quote characters from command. With the control key will move through the list backwards. Key will cycle through the list of matching paths. Thereafter, repeated pressing of the same control F:OFF Disable auto-completion of pathnames entered at the CMD prompt (default)Īt the command prompt Ctrl-D gives fol der name completion andĬtrl-F gives File and folder name completion.įirst matching path. F:ON Enable auto-completion of pathnames entered at the CMD prompt Y Disable CMD Command Extensions (old switch for compatibility) X Enable CMD Command Extensions (old switch for compatibility) E:ON Enable CMD Command Extensions (default) HKLM | HKCU \Software\Microsoft\Command Processor\AutoRun Most common text files are ANSI, use these switches when These options will affect piping or redirecting to a file. T: fg Sets the foreground/background colours (the whole should also be surrounded by "quotes") This can even be several commands separated with ' &' to examine variables.Ĭommand : The command, program or batch script to be run. K Run Command and then remain open, at the CMD prompt. Start a new CMD shell and (optionally) run a command/executable program.
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