regex - BASH_REMATCH empty - Stack Overflow Note, however, that if =~ signals success, BASH_REMATCH is never fully empty: at the very least - in the absence of any capture groups - ${BASH_REMATCH[0]} will be defined
Why does BASH_REMATCH not work for a quoted regular expression? 14 Thanks to your debugging statement, echo The regex matches!, you should have noticed there is no problem with BASH_REMATCH, since the if statement evaluates to false In bash, regular expressions used with =~ are unquoted If the string on the right is quoted, then it is treated as a string literal
What is the zsh equivalent for $BASH_REMATCH []? The manual says about BASH_REMATCH: When set, matches performed with the =~ operator will set the BASH_REMATCH array variable, instead of the default MATCH and match variables The first element of the BASH_REMATCH array will contain the entire matched text and subsequent elements will contain extracted substrings This option makes more sense when KSH_ARRAYS is also set, so that the entire
How do I extract a string using a regex in a shell script? So in this case ${BASH_REMATCH[1]} will contain "www google com", which I think is the string you want Note that the contents of the BASH_REMATCH array only apply to the last time the regular expression =~ operator was used So if you go on to do more regular expression matches, you must save the contents you need from this array each time
bash - Capturing Groups From a Grep RegEx - Stack Overflow The results of the match are saved to an array called $BASH_REMATCH The first capture group is stored in index 1, the second (if any) in index 2, etc Index zero is the full match
regex - Match groups in Python - Stack Overflow Is there a way in Python to access match groups without explicitly creating a match object (or another way to beautify the example below)? Here is an example to clarify my motivation for the quest
Multiple matches in a string using regex in bash - Stack Overflow The regex you supply would match the first item DO-BATCH with ${BASH_REMATCH[1]} == DO and ${BASH_REMATCH[2]} as BATCH, but you would have to run the regex again against the remaining string to get the second value BATCH-DO
bash_rematch and regex (with nested parens) - Stack Overflow The matching have a strange behaviour, I don't find the other portion of the input string in $ {BASH_REMATCH [3]} although is in the 3rd parens of the regex What's happen with nested parens?