Differences

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--- bash:globs [2021/02/04 09:33] – [No Case Match - nocasematch] peter
+++ bash:globs [2021/02/04 09:43] (current) – [Glob Star - globstar] peter
@@ Line 405: / Line 405: @@
 (since bash 4.0-alpha)
-globstar recursively repeats a pattern containing '**'.
+globstar recursively repeats a pattern containing **<nowiki>**</nowiki>**.
 <code bash>
-$ shopt -s globstar; tree
+shopt -s globstar; tree
 .
 ├── directory2
@@ Line 418: / Line 418: @@
 </code>
-# Suppose that for the following examples.
+Suppose that for the following examples.
 Matching files:
@@ Line 434: / Line 434: @@
 </code>
-Just like '*', '**' followed by a '/' will only match directories:
+<WRAP info>
+**NOTE:**  To disable globstar use
 <code bash>
-$ files=(**/)
+shopt -u globstar
-# finds all subdirectories
+</code>
+See:  **help shopt** for details.
+</WRAP>
+----
+Assume you have a folder structure:
+<code>
+.
+├── bar
+│   ├── foo
+│   │   └── baz
+│   │       └── hurz
+│   │           └── lolz
+│   │               └── hello.txt
+│   └── poit.txt
+└── fnord.txt
+</code>
+Then **ls** with single star **<nowiki>*</nowiki>** would list:
+<code bash>
+ls *.txt
+fnord.txt
+</code>
+The double star operator **<nowiki>**</nowiki>** will work on the subfolders.  The output will look like:
+<code bash>
+ls **/*.txt
+bar/foo/baz/hurz/lolz/hello.txt  bar/poit.txt  fnord.txt
+</code>
+----
+<WRAP info>
+**NOTE:**  Just like **<nowiki>*</nowiki>**, **<nowiki>**</nowiki>** followed by a **<nowiki>/</nowiki>** will only match directories:
+</WRAP>
+<code bash>
+files=(**/)
+# Finds all subdirectories.
-$ files=(. **/)
+files=(. **/)
-# finds all subdirectories, including the current directory
+# Finds all subdirectories, including the current directory.
-# corresponds to: find -type d
+# Corresponds to: find -type d.
 </code>