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2018grep_motifs [2018/09/10 11:33]
david [Variable length patterns]
2018grep_motifs [2018/09/10 11:37]
david
Line 107: Line 107:
        ​{n,​m} ​ The preceding item is matched at least n times, but not more than m times.        ​{n,​m} ​ The preceding item is matched at least n times, but not more than m times.
 </​code>​ </​code>​
 +
 +Regular expressions are a general concept, but different commands may have different limitations on what they support.
 +There are more operators, patterns, and capabilities of regular expressions,​ but like most things we've encountered,​ YOU MUST TEST each command to make sure it works as expected.
2018grep_motifs.txt ยท Last modified: 2018/09/10 11:37 by david