Regular Expressions 101

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([^7]*,){5}(?<job>[^,]*),
/
gm
1st Capturing Group
([^7]*,){5}
{5} Quantifier — Matches exactly 5 times
A repeated capturing group will only capture the last iteration. Put a capturing group around the repeated group to capture all iterations or use a non-capturing group instead if you're not interested in the data
Match a single character not present in the list below
[^7]*
* Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)
7 matches the character 7 literally (case sensitive)
, matches the character , literally (case sensitive)
Named Capture Group job
(?<job>[^,]*)
Match a single character not present in the list below
[^,]*
* Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)
, matches the character , literally (case sensitive)
, matches the character , literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
m modifier: multi line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/
gm

Test String