Erro "unexpected end of file" [RESOLVIDO]

ROP
(usa Ubuntu)

Enviado em 21/11/2016 - 22:03h

#!/bin/bash



cripto(){  echo "a b c d e f g h i j k l m n o p q r s t u v w x y z" | cut -d"$1" -f1 | tr " " "\n" | wc -l }



if [[ $1 == "" ]]; then exit; fi

ent=$1

echo "Original: $ent"

p1="$(echo $ent | tr "[a-z]" "zyxwvutsrqponmlkjihgfedcba")"

p2="$(echo $p1 | tr " " ":")"

p3="$(echo $p2 | tr "\n" "@")"

for a in $(seq $(echo -n "$p3" |  wc -c)); do

  carac=$(echo "$p3" | cut -b $a)

  cripto $carac

done