Well, FreeBSD 'adduser' IIRC displays the regexp that the username must conform to, but I am not at my FreeBSD box now so I can't check that, however here is my stab at a regexp you might need:

/^[A-Za-z][-.A-Za-z0-9_]+$/

[download]

This will force the first character to be a-z or A-Z and any other character a-z, A-Z, 0-9, -, . or _. It will also force the login name to be at least 2 characters (I'm not sure if this is what you want) and reject a username made up entirely of numbers (as the first character must be a-z or A-Z)

Hope this helps.

In reply to Re: stuck on regexp by moxliukas
in thread stuck on regexp by jimbobn

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