Create en.md for Changing Shell page

configuration/changing-shell/en.md

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+title = "Changing Shell"
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+# Changing Shell
+
+A Unix shell is a command-line interpreter or shell that provides a traditional user interface for the Unix operating system and for Unix-like systems.
+Users direct the operation of the computer by entering commands as text for a command line interpreter to execute or by creating text scripts of one or more such commands.
+
+A Unix shell is a command-line interpreter that provides an interface and functionalities for your terminal. The most known and used shell in Linux is *bash* as it comes installed and activated on most distribution out-of-the-box.
+
+Other shells exist, such as :
+  - Dash
+  - Fish
+  - Zsh
+  
+A list of available shells on Solus is in `/usr/share/defaults/etc/shells`.
+
+If you want to switch from *bash* to another shell in your terminal you have to use the command `chsh` to do that (alongside installing the proper package for your shell).
+
+The command is used with `sudo` rights to change the shell for your user session.
+
+Exemple:
+````
+sudo chsh -s /bin/zsh $(whoami)
+```