Right regex expression to find out a string of characters

Your request is a bit ambiguous, but a regex pattern of

^[a-zA-Z0-9\r\n]{10,14}$

should match:

abcdefghijklmno
abcdefghijklmn (match)
abcdefghij     (match)
abcdefghi
abcdefghijklm#
abcdefg        (match with next line)
hij
klm

This pattern assumes that you're using a case-insensitive match (e.g., PowerShell's -match operator and not not -cmatch.

Your request is a bit ambiguous, but a regex pattern of

^[a-zA-Z0-9\r\n]{10,14}$

should match:

abcdefghijklmno
abcdefghijklmn (match)
abcdefghij     (match)
abcdefghi
abcdefghijklm#
abcdefg        (match with next line)
hij
klm

This pattern assumes that you're using a case-insensitive match (e.g., PowerShell's -match operator and not not -cmatch.

Thought this might be a fun addition. Check out the ChatGPT answer to this question: