From: Holger Schurig <holgerschurig@gmail.com>
To: barebox@lists.infradead.org
Subject: [PATCH 08/12] doc: add hint on how to calculate in hush
Date: Fri, 27 Jun 2014 13:00:17 +0200 [thread overview]
Message-ID: <1403866821-4029-9-git-send-email-holgerschurig@gmail.com> (raw)
In-Reply-To: <1403866821-4029-1-git-send-email-holgerschurig@gmail.com>
Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
---
Documentation/user/hush.rst | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/user/hush.rst b/Documentation/user/hush.rst
index 2a0e630..ba4f062 100644
--- a/Documentation/user/hush.rst
+++ b/Documentation/user/hush.rst
@@ -50,3 +50,11 @@ example the :ref:`command_echo` command has the ``-a FILE`` option for appending
a file and the ``-o FILE`` option for overwriting a file. The readline
command requires a variable name as argument in which the line will be
stored.
+
+**NOTE:** hust feels like a normal Unix shell, but it cannot calculate by
+itself, i.e. $(($A/2)) won't work. Calculation can however be done
+with :ref:`command_let`::
+
+ A=10
+ let B=$A/2
+ echo $B
--
1.7.10.4
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next prev parent reply other threads:[~2014-06-27 10:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-27 11:00 [PATCH 00/12] documentation updates Holger Schurig
2014-06-27 11:00 ` [PATCH 01/12] doc: .gitignore generated files Holger Schurig
2014-06-27 11:00 ` [PATCH 02/12] doc: make "System setup" an appendix Holger Schurig
2014-06-27 11:00 ` [PATCH 03/12] doc: start (almost) all headlines with a capital Holger Schurig
2014-06-27 11:00 ` [PATCH 04/12] doc: only include own download chapter Holger Schurig
2014-06-27 11:00 ` [PATCH 05/12] doc: filesystemtype -> filesystem type Holger Schurig
2014-06-27 11:00 ` [PATCH 06/12] doc: mention "make xconfig" Holger Schurig
2014-06-27 11:00 ` [PATCH 07/12] doc: add colon after NOTE and HINT Holger Schurig
2014-06-27 11:00 ` Holger Schurig [this message]
2014-06-27 11:00 ` [PATCH 09/12] doc: remove board type from barebox prompt examples Holger Schurig
2014-06-27 11:00 ` [PATCH 10/12] doc: reformat overly long lines Holger Schurig
2014-06-27 11:00 ` [PATCH 11/12] doc: move variables near device parameters Holger Schurig
2014-06-27 11:00 ` [PATCH 12/12] doc: link back from variables to " Holger Schurig
2014-06-27 19:48 ` [PATCH 00/12] documentation updates Sascha Hauer
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