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[Savannah-cvs] [783] add note about nullglob


From: iank
Subject: [Savannah-cvs] [783] add note about nullglob
Date: Thu, 18 Apr 2024 15:22:04 -0400 (EDT)

Revision: 783
          
http://svn.savannah.gnu.org/viewvc/?view=rev&root=administration&revision=783
Author:   iank
Date:     2024-04-18 15:22:02 -0400 (Thu, 18 Apr 2024)
Log Message:
-----------
add note about nullglob

Modified Paths:
--------------
    trunk/sviki/fsf/bash-style-guide.mdwn

Modified: trunk/sviki/fsf/bash-style-guide.mdwn
===================================================================
--- trunk/sviki/fsf/bash-style-guide.mdwn       2024-04-18 06:26:33 UTC (rev 
782)
+++ trunk/sviki/fsf/bash-style-guide.mdwn       2024-04-18 19:22:02 UTC (rev 
783)
@@ -533,3 +533,17 @@
 readonly this_file this_dir="${this_file%/*}"
 cd "$this_dir"
 ```
+
+
+Globing files needs `shopt -s nullglob` to do succinctly. Once you
+realize you need nullglob, add it at the top of your script. It is very
+easy to forget, so it is a good idea to put it at the top of all your
+scripts.
+
+
+```
+shopt -s nullglob
+for f in dir/*; do
+  some-command $f
+done
+```




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