Why does findstr not handle case properly (in some circumstances)?

Question

While writing some recent scripts in cmd.exe, I had a need to use findstr with regular expressions - customer required standard cmd.exe commands (no GnuWin32 no

Answer 1

So if you want

• only numbers : FindStr /R "^[0123-9]*$"

• octal : FindStr /R "^[0123-7]*$"

• hexadécimal : FindStr /R "^[0123-9aAb-Cd-EfF]*$"

• alpha with no accent : FindStr /R "^[aAb-Cd-EfFg-Ij-NoOp-St-Uv-YzZ]*$"

• alphanumeric : FindStr /R "^[0123-9aAb-Cd-EfFg-Ij-NoOp-St-Uv-YzZ]*$"