Filenames, Wildcards and Pathname Expansion: Difference between revisions
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==Regular Expressions== | |||
What is an expression? An expression doesn't literally mean what it says. | |||
An expression, even in computer technology, is not somethng to be interpreted literally. It is something that needs to be evaluated. An expression describes a result. An expression tells the computer how to produce a result. | |||
==Basic Wildcards== | ==Basic Wildcards== | ||
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[!''set''] Any character not in ''set'' | [!''set''] Any character not in ''set'' | ||
<span class="warning">password too short</span> | |||
aap | aap | ||
Revision as of 21:13, 28 September 2010
Regular Expressions
What is an expression? An expression doesn't literally mean what it says. An expression, even in computer technology, is not somethng to be interpreted literally. It is something that needs to be evaluated. An expression describes a result. An expression tells the computer how to produce a result.
Basic Wildcards
Wildcard Matches ? Any single character
- Any string of character
[set] Any character in set [!set] Any character not in set
password too short
aap
? a * a [set] [!set]
aap
| header 1 | header 2 | header 3 |
|---|---|---|
| row 1, cell 1 | row 1, cell 2 | row 1, cell 3 |
| row 2, cell 1 | row 2, cell 2 | row 2, cell 3 |
| Duis | aute | irure |
|---|---|---|
| dolor | in reprehenderit | in voluptate velit |
| esse cillum dolore | eu fugiat nulla | pariatur. |