<> = Editing text files = Whilst using FSL you are likely to need to use a text editor at some point, for example to create a `fsl.sh` settings file, a `~/.bash_profile` or `~/.zprofile` shell configuration, or an event EV file. There are lots of plain text editors available - some suggestions can be found below. Or, you may already be familiar with an advanced editor such as [[http://www.gnu.org/software/emacs/|Emacs]], [[https://code.visualstudio.com/|VS Code]], or [[https://atom.io/|Atom]]. == nano == One of the simplest options is a terminal-based program called `nano`. This is installed on nearly all macOS / Linux computers, and is old-fashioned, but easy to use. Simply type `nano ` into a terminal. == macOS == macOS comes with an editor `TextEdit` (look in `/Applications`), by default it create ''Rich Text'' documents which FSL cannot use, so you need to change the settings so that it will create ''Plain Text'' files. Do this by opening the preferences window (`TextEdit` > `Preferences`) and in the `New Document tab choose `Plain Text` from the `Format` section. Then in the `Open and Save` tab deselect `Add ".txt" extension to plain text files`. You can now close this window and open a new file with `File` > `New`. {{attachment:TextEditND.png|Format, Plain Text|width=350}}{{attachment:TextEditOS.png|Don't add ".txt" extension|width=350}} Other options include the editors mentioned in the [[#Linux|Linux section]] below, although you may have to download and install the editor. == Linux == The Gnome desktop ships with an editor called [[http://projects.gnome.org/gedit/|Gedit]] which is straightforward to use (there is a Mac OS X version available). To start it type `gedit`, or `gedit ` into a terminal. == Windows == If you have installed FSL on Windows, using the Windows Subsystem for Linux, you can use `nano` or `gedit` to edit plain text files (although you may need to install `gedit` first). The [[https://www.microsoft.com/en-gb/p/windows-notepad/9msmlrh6lzf3?activetab=pivot:overviewtab|Windows Notepad]] program is also a good choice for editing plain-text files on Windows.