# fun with zero-width-space in filenames
ksh93 -c 'echo "secret7gis244burn8" >"$(maxfilenamelen=$(getconf NAME_MAX "$PWD") ; printf "foo" ; for((i=0 ; i < (maxfilenamelen/3-10) ; i++)) ; do print -f "\u[200b]" ; done ; printf "bar.txt")"'