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copied table 5.2, which goes over some basics of regex in context of shell programming

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tomit4 2022-05-07 16:20:11 -07:00
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unix_programming_environment/shell_pattern_matching_rules.txt Normal file
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------------------------- Table 5.2 -------------------------
* match any string, including the null string
? match any single character
[ccc] match any of the characters in ccc.
[a-d0-3] is equivalent to [abcd0123]
"..." match ... exactly; quotes protect special characters. Also '...'
\c match c literally
a|b in case expressions only, matches either a or b
/ in filenames, matched only by an explicit / in the epxression;
in case, matched like any other character
. as the first character of a filename, is matched only by an
explicit . in the expression