Shell Programming and Scripting

I have a problem with my homework I need to create a shell script using

Code:

#!bin/awk -f

the script will output the file in an alphabetical order only words and after the word is

Code:

:

after that a space then

Code:

,

then it will be numbered each character by which line its been for example

Code:

CB
92A 
A
BFG How Are You 
B Are 
C 
C Are
.
.B

It should be

Code:

A: 3, 4
Are: 5, 6, 8
B: 6, 10
BFG: 5
C: 1, 7, 8
CB: 2
How: 5
You: 5

I have tried this, but saddunly it did not work

Code:

 #!bin/awk -f
{
split($0, char);
print $0;
sort;
}

I'm using linux

---------- Post updated at 02:41 PM ---------- Previous update was at 12:05 AM ----------

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