24 lines
1.2 KiB
Text
24 lines
1.2 KiB
Text
Agrep is a tool for fast text searching allowing errors.
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The three most significant features of agrep that are not supported by
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the grep family are
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1) the ability to search for approximate patterns;
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for example, "agrep -2 homogenos foo" will find homogeneous as well
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as any other word that can be obtained from homogenos with at most
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2 substitutions, insertions, or deletions.
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"agrep -B homogenos foo" will generate a message of the form
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best match has 2 errors, there are 5 matches, output them? (y/n)
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2) agrep is record oriented rather than just line oriented; a record
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is by default a line, but it can be user defined;
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for example, "agrep -d '^From ' 'pizza' mbox"
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outputs all mail messages that contain the keyword "pizza".
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Another example: "agrep -d '$$' pattern foo" will output all
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paragraphs (separated by an empty line) that contain pattern.
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3) multiple patterns with AND (or OR) logic queries.
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For example, "agrep -d '^From ' 'burger,pizza' mbox"
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outputs all mail messages containing at least one of the
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two keywords (, stands for OR).
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"agrep -d '^From ' 'good;pizza' mbox" outputs all mail messages
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containing both keywords.
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LICENSE: no redistribution for profit
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