[bug#74418] [PATCH] doc: Explain ‘--’ syntax of ‘guix shell’ before giving examples.

[Florian Pelz <pelzflorian@pelzflorian.de>]

This paragraph is present in the ‘guix environment’ docs.  I presume
it clarifies ‘guix shell’ for newcomers as well.

* doc/guix.texi (Invoking guix shell): Take over an introductory
paragraph from ‘guix environment’ and use it for ‘guix shell’.

Change-Id: I06280516ad3436260114b074c5f325e6984e9c76
---
 doc/guix.texi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/doc/guix.texi b/doc/guix.texi
index ba4bd2cc79..f71f0b6561 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -5933,6 +5933,10 @@ Invoking guix shell
 guix shell [@var{options}] [@var{package}@dots{}]
 @end example
 
+Sometimes an interactive shell session is not desired.  An arbitrary
+command may be invoked by placing the @code{--} token to separate the
+command from the rest of the arguments.
+
 The following example creates an environment containing Python and NumPy,
 building or downloading any missing package, and runs the
 @command{python3} command in that environment:

base-commit: 23cbbe6860782c5d4a0ba599ea1cda0642e91661
-- 
2.46.0