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No. It will remove characters that are not in the "ASCII range" from 0x00 up to 0x7F. ASCII control chars (non- printable, incl. white space) will NOT be removed. It will remove characters above...

What's your locale, esp. the LC_COLLATE variable?


Try that command prefixed with LC_ALL=C.

ascii is not found in the wctype character classes, nor mentioned in e.g. man regex.

What characters do you want to remove? Strange locales'? Be aware that control chars 0x00 - 0x1F (including...