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mrpharderwijk/GLOB-PATTERNS.md

Last active April 16, 2019 09:30
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Glob patterns
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GLOB-PATTERNS.md

Glob Primer

"Globs" are the patterns you type when you do stuff like ls *.js on the command line, or put build/* in a .gitignore file.

Before parsing the path part patterns, braced sections are expanded into a set. Braced sections start with { and end with }, with any number of comma-delimited sections within. Braced sections may contain slash characters, so a{/b/c,bcd} would expand into a/b/c and abcd.

The following characters have special magic meaning when used in a path portion:

  • * Matches 0 or more characters in a single path portion
  • ? Matches 1 character
  • [...] Matches a range of characters, similar to a RegExp range. If the first character of the range is ! or ^ then it matches any character not in the range.
  • !(pattern|pattern|pattern) Matches anything that does not match any of the patterns provided.
  • ?(pattern|pattern|pattern) Matches zero or one occurrence of the patterns provided.
  • +(pattern|pattern|pattern) Matches one or more occurrences of the patterns provided.
  • *(a|b|c) Matches zero or more occurrences of the patterns provided
  • @(pattern|pat*|pat?erN) Matches exactly one of the patterns provided
  • ** If a "globstar" is alone in a path portion, then it matches zero or more directories and subdirectories searching for matches. It does not crawl symlinked directories.

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