Shell Programming and Scripting

$ alias fuz*zyanimals="cat dog"

fuz
fuzz
fuzzy
fuzzya
fuzzyan
fuzzyanim
fuzzyanima
fuzzyanimal
fuzzyanimals

$ complete -W "cat dog" fuz
$ fuz <tab><tab>
cat     dog
$ fuz c<tab>

$compete -A directory fuz
$ fuz <tab><tab>
bin/  code/ perl/  photos/ proj/
$ fuz p<tab><tab>
perl/ photos/ proj/

nalias() {
   local fulline="$*"
   local xalias=${fulline#*=}
   local name=${fulline%%=*}
   local i
   for i in $(seq 3 ${#name})
   do 
      alias ${name::$i}="$xalias"
   done
}

$ nalias fuzzyanimals='cat dog'
$ alias | grep fuz
alias fuz='cat dog'
alias fuzz='cat dog'
alias fuzzy='cat dog'
alias fuzzya='cat dog'
alias fuzzyan='cat dog'
alias fuzzyani='cat dog'
alias fuzzyanim='cat dog'
alias fuzzyanima='cat dog'
alias fuzzyanimal='cat dog'
alias fuzzyanimals='cat dog'
$ fuzzyanim
cat: dog: No such file or directory
$

nalias() {
   local fulline="$*"
   local xalias=${fulline#*=}
   local name=${fulline%%=*}
   local pre=${name%%\**}
   local i

   [ "$pre" == "$name" ] && name=""
   name=${name#${pre}\*}

   for((i=0; i <= ${#name}; i++))
   do
      alias $pre${name:0:$i}=$xalias
   done
}