\section open open - open file in its default application \subsection open-synopsis Synopsis \fish{synopsis} open FILES... \endfish \subsection open-description Description `open` opens a file in its default application, using the appropriate tool for the operating system. On GNU/Linux, this requires the common but optional `xdg-open` utility, from the `xdg-utils` package. Note that this function will not be used if a command by this name exists (which is the case on macOS or Haiku). \subsection open-example Example `open *.txt` opens all the text files in the current directory using your system's default text editor.