2 First of all, it should be echo -n "ΒΓΔΕΖΗΘΙΚΛΜΝΞΠΡΣΤΥΦΧΨΩ"|iconv -f UTF-8 -t ASCII//TRANSLIT. Note the capial UTF-8 and no IGNORE. Second, there was a Greek transliteration table missing in glibc until recently. (iconv is part of glibc) [1]
2 First of all, it should be echo -n "ΒΓΔΕΖΗΘΙΚΛΜΝΞΠΡΣΤΥΦΧΨΩ"|iconv -f UTF-8 -t ASCII//TRANSLIT. Note the capial UTF-8 and no IGNORE. Second, there was a Greek transliteration table missing in glibc until recently. (iconv is part of glibc) [1]