psql -h localhost -d detrix < /usr/local/bin/3.sql

ERROR:  invalid byte sequence for encoding "UTF8": 0xc6c9
HINT:  This error can also happen if the byte sequence does not match the encoding expected by the server, which is controlled by "client_encoding"

 file -i /usr/local/bin/3.sql 
 /usr/local/bin/3.sql: text/plain; charset=iso-8859-1
root@detrix:/usr/home/ssh # iconv -f iso-8859-1 -t UTF-8 /usr/local/bin/3.sql > /usr/local/bin/4.sql

ÆÉÌÉÁÌ æçõð "ðÏÞÔÁ òÏÓÓÉÉ" íÏÒÛÁÎÓËÉÊ ÐÏÞÔÁÍÔ