Working regex does not match in bash
9141
Why does my regular expression work in X but not in Y?
141213
How do I check if a filename matches a wildcard pattern
101144
How to match, but not capture, part of a regex?
120721
Why can't I match my string from standard input in Perl?
19908
How can I compare numbers in Bash?
28555
Extract substring in Bash
131663
How to parse a command line with regular expressions?
102338
String comparison failing in bash
148063
Python regex - why does end of string ($ and \Z) not work with group expressions?
12642
sed command not giving proper output for regular expression used
121082
Why does [A-Z] match lowercase letters in bash?
138961
In Bash, how can I check if a string begins with some value?
50014
Problems with regex in grep
33198
grep not working as expected
56690
Regular expressions VS Filename globbing
106655
Grep: The asterisk (*) doesn't always work
10125
How does this regular expression work?