• Computer addict since 1986 (C128, Amiga 500, i486DX2 Overdrive, Intel Pentium II (Dual Processor), Digital Alpha 21164PC, AMD Athlon, Intel Core 2 Duo, Intel Core i7 3930K, AMD Ryzen 9 3900X)
• DOS User since 1990 (MS DOS 5.0, 6.2)
• Windows User since 1993 (3.1, WfW 3.11, 95, 98, NT 4.0, XP, 7, 10, 11)
• Internet addicted since first contact 1995
• Linux User since 1995 (S.u.S.E Linux, Gentoo Linux, Kubuntu, RHEL 4,5,6,7,8)
• Computer scientist since 2001

English is not my first language, so I appreciate all edits to my questions and answers which correct orthography and grammar.

Useful Link:

• The Stack Overflow Regular Expressions FAQ