Write a program in either Ruby, Smalltalk, or BASH using www.compileonline.com U

Question

Write a program in either Ruby, Smalltalk, or BASH using www.compileonline.com

Use the input.txt file to store names like:

Greed, Greg

Smith, Sally

Jones, James

Abernathy, Samantha

Have it read in the number of names to work on. Then read in each name, find the comma, and reverse the first name and last. Print the number and the new name, like so:

Name #1 Greg Greed

Name #2 Sally Smith

Name #3 James Jones

Name #4 Samantha Abernathy

below is what I have....but it doesn't reverse the first and last name

# bash script

#! /bin/bash

INPUT_FILE=input.txt

LINE_NO=1

while read line
do
set `echo $line |awk -F, '{print $1,$2}'`
VAL1=$1
VAL2=$2
echo "Name #$LINE_NO $VAL2 $VAL1"
let LINE_NO=LINE_NO+1
done < $INPUT_FILE

exit 0

Explanation / Answer

# bash script

#! /bin/bash

INPUT_FILE=input.txt

LINE_NO=1

while read line || [[ -n "$line" ]]; do
set `echo $line |awk -F, '{print $1,$2}'`
VAL1=$1
VAL2=$2
echo "Name #$LINE_NO $VAL2 $VAL1"
let LINE_NO=LINE_NO+1
done < $INPUT_FILE

NOTE: your programe is also correct.you just need to take care of the last element because there is no new line at the end of it .while alone is not able to read that line..

thankyou

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