script (txt_convert.sh <infile> <outfile>):
#!/bin/sh
iconv -f `file -b --mime-encoding "$1"` -t utf8 "$1" -o "$2"
:
iconv -f `file -b --mime-encoding "<infile>"` -t utf8 "<infile>" -o "<outfile>"
: "" , "iconv", utf8 ( utf-8 , , iconv (. iconv -l)