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@@ -39663,6 +39663,23 @@ contents of the extensions will be added to the end of the corresponding
Bash configuration files (@pxref{Bash Startup Files,,, bash, The GNU
Bash Reference Manual}.
+For example, here is how you would define a service that extends the
+Bash service such that @file{~/.bash_profile} defines an additional
+environment variable, @env{PS1}:
+
+@lisp
+(define bash-fancy-prompt-service
+ (simple-service 'bash-fancy-prompt
+ home-bash-service-type
+ (home-bash-extension
+ (environment-variables
+ '(("PS1" . "\\u \\wλ "))))))
+@end lisp
+
+You would then add @code{bash-fancy-prompt-service} to the list in the
+@code{services} field of your @code{home-environment}. The reference of
+@code{home-bash-extension} follows.
+
@deftp {Data Type} home-bash-extension
Available @code{home-bash-extension} fields are: