UNIX for Dummies Questions & Answers

$
$
$ cat junk
#! /usr/bin/ksh
function myecho
{
        ''echo -e ${1:+"$@"}
        return $?
}
alias echo=myecho
echo hello\\0303\\0251\\0265\\0266\\0204\\0211\\0274\\0261\\0244\\0241there > garbage
od -c garbage
tr -d el < garbage >clean
tr -d \\303\\251\\265\\266\\204\\211\\274\\261\\244\\241 < garbage >clean
od -c clean
exit 0
$
$
$
$ ./junk
0000000   h   e   l   l   o 303 251 265 266 204 211 274 261 244 241   t
0000020   h   e   r   e  \n
0000025
0000000   h   e   l   l   o   t   h   e   r   e  \n
0000013
$
$
$

sed 's/[^[:alpha:][:digit:][:space:][:punct:]]//g'  infile  > outfile