query: How to use regular expression to trim the beginning of a line to a specific symbol?
positive_passages.docid: 1388
positive_passages.text: Learning Regular Expressions
negative_passages.docid: 101842
negative_passages.text: How to find line with least characters
negative_passages.docid: 1676
negative_passages.text: Regex to find not start and end with dot and allow some special character only not all
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negative_passages.text: Starting a line where the previous line finishes
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negative_passages.text: How to remove line breaks (no characters!) from the string?
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negative_passages.text: how to extract part of a filename before '.' or before extension
negative_passages.docid: 143570
negative_passages.text: How to trim a particular word from a string and store it?
negative_passages.docid: 8112
negative_passages.text: How to add text to end of line when pattern is matched?
negative_passages.docid: 118486
negative_passages.text: Detecting pattern at the end of a line with grep
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negative_passages.text: Regex to strip line comments from C#
negative_passages.docid: 74756
negative_passages.text: How can I trim leading and trailing white space?
negative_passages.docid: 114572
negative_passages.text: Remove the first part of a string using sed
negative_passages.docid: 85120
negative_passages.text: How to get everything after a certain character?
negative_passages.docid: 45463
negative_passages.text: How do I replace all line breaks in a string with  elements?
negative_passages.docid: 58879
negative_passages.text: Java - removing first character of a string
negative_passages.docid: 69395
negative_passages.text: How do I remove a substring from the end of a string?
negative_passages.docid: 57165
negative_passages.text: How do I grep lines ending on a specific expression