{"author_name":"Saskia Hiltemann","author_url":"https://galaxy.training","description":"Regular expressions are a standardized way of describing patterns in textual data. They can be extremely useful for tasks such as finding and replacing data. They can be a bit tricky to master, but learning even just a few of the basics can help you get the most out of Galaxy.  **Finding**  Below are just a few examples of basic expressions:  | Regular expression | Matches | |--------------------|-------------| | `abc`              | an occurrence of `abc` within your data | | `(abc|def)`        | `abc` *or* `def` | | `[abc]`            | a single character which is either `a`, `b`, or `c` | | `[^abc]`           | a character that is NOT `a`, `b`, nor `c` | | `[a-z]`            | any lowercase letter | | `[a-zA-Z]`         | any letter (upper or lower case)| | `[0-9]`            | numbers 0-9 | | `\\d`               | any digit (same as `[0-9]`) | | `\\D`               | any non-digit character | | `\\w`               | any alphanumeric character | | `\\W`               | any non-alphan...","height":400,"html":"<iframe width=\"560\" height=\"400\" scrolling=\"yes\" sandbox=\"allow-same-origin allow-scripts\" title=\"FAQ: Regular Expressions 101\" src=\"https://training.galaxyproject.org/training-material/faqs/galaxy/analysis_regular_expressions.html?utm_source=galaxy-help&utm_medium=oembed&utm_campaign=oembed\" frameborder=\"0\" allowfullscreen></iframe>","provider_name":"Galaxy Training Network (GTN)","provider_url":"https://galaxy.training","thumbnail_height":400,"thumbnail_url":"https://training.galaxyproject.org/training-material/assets/images/GTNLogo1000.png","thumbnail_width":560,"title":"FAQ: Regular Expressions 101","type":"video","version":"1.0","width":560}