Simple regex matching produces wildly different results depending on shell version
4697
bash regex with quotes?
39310
How do you compare two version Strings in Java?
88484
Why is the wild card character * so different between the zip and rm commands?
64366
Matching an optional substring in a regex
102338
String comparison failing in bash
95065
Grep -H not always returning file path when two matches are on the same line
10632
sed regular expression behaving differently than in vim and perl?
759
How do I match any character across multiple lines in a regular expression?
11467
Differences between MATCH FULL, MATCH SIMPLE, and MATCH PARTIAL?
157559
In a Bash if condition, how to check whether any files matching a simple wildcard expression exist?
73377
why is regex constructor not working?
131930
How does storing the regular expression in a shell variable avoid problems with quoting characters that are special to the shell?
35292
No matches with c++11 regex
113601
What is the difference between .*? and .* regular expressions?
77246
Regex exec only returning first match
113604
Why does this regex with no special character match a longer string?
136156
Regular expression works on regex101.com, but not on prod