Shell Programming and Scripting

#! /bin/sh -f

vowels=0

while IFS="\n" read line
do
    length=${#line}
    if [[ $length -eq 1 ]] ; then
    continue
    fi ;
    new_line=$(echo "$line" | tr -d 'aeiouAEIOU')
    new_length=${#new_line}
    vowel=$(($vowel + $length - $new_length))
done < input.txt

echo Vowels=$vowel

[/tmp]$ cat input.txt
       Bash  is  an  sh-compatible  command language interpreter that executes
       commands read from the standard input or from a file.  Bash also incor-
[/tmp]$ ./try.sh 
Vowels=42
[/tmp]$

tr '[a-z]' '[A-Z]' < 1.txt | tr -sc 'AEIOU' '[\012*]' | sort | uniq -c

all = open("input.txt").read()
vowels="aAeEiIoOuU"
for v in vowels:
        total = total + all.count(v) 
 	print "Vowel: ", v, "count: ", all.count(v)
print "Total vowels: " , total

Vowel:  a count:  14
Vowel:  A count:  0
Vowel:  e count:  11
Vowel:  E count:  0
Vowel:  i count:  6
Vowel:  I count:  0
Vowel:  o count:  8
Vowel:  O count:  0
Vowel:  u count:  3
Vowel:  U count:  0
Total vowels: 42