Example strings:
John, a 005, green, 01-22-18.abc
 Sarah, 325, blue, 03-18-17.abc
 Mike, b 56, red, 12-05-17.abc
I would like regex to match 005 325 and 56 respectively. Could you show me how to accomplish it?
Thanks.
Example strings:
John, a 005, green, 01-22-18.abc
 Sarah, 325, blue, 03-18-17.abc
 Mike, b 56, red, 12-05-17.abc
I would like regex to match 005 325 and 56 respectively. Could you show me how to accomplish it?
Thanks.
 
    
    You can use this regex to match numbers that occur between first and second comma in each line:
^[^,]*,[^,0-9]*([0-9]+)
Numbers are available in capture group #1
Explanation:
^[^,]*,: Match anything until first comma and then the comma at start[^,0-9]*: Match 0 or more characters that are not comma or digits([0-9]+): Match 1 or more digits and capture it in group #1 
    
    Depending on your regex engine you could use Positive Lookbehind and Positive Lookahead.
(?<=,\W|\s)\d+(?=,)
Explanation in order of execution:
\d+ Matches one or more digits
(?<=,\W|\s) preceded by a comma and a non-word character or a whitespace
(?=,) and is followed by a comma.
Try it here:
