nixCraft

#!/bin/bash
#Declare array 
declare -a inputFile
#Open file for reading to inputFile
exec 10<kurac.txt
let count=0
while read LINE <&10; do
    inputFile[$count]=$LINE
    ((count++))
# get number of lines in the inputFile
lajneInput=${#inputFile[@]}
done
#Declare array 
declare -a outFile
#Open file for reading to outFile
exec 11<sisa.txt
let count=0
while read LINE <&11; do
    outFile[$count]=$LINE
    ((count++))
# get number of lines in the outFile
lajneOut=${#outFile[@]}
done

echo Broj lajni u ulaznom: ${#inputFile[@]}
echo Broj lajni u izlaznom: ${#outFile[@]}

# Select a line in inputFile and compare it to a line in outputFile
for (( i=0;i<$lajneInput;i++)); do
    lajnaIn=${inputFile[${i}]}
    y=i+1
    lajnaZapis=${inputFile[${y}]}
    for (( j=0;j<$lajneOut;j++)); do
        lajnaDva=${outFile[${j}]}
# Make sure the line1 and line1 are the same, and they have n as second char...
            if [ "${lajnaIn:1:1}" = "n" ] && [ "$lajnaIn" = "$lajnaDva" ]; then 
# Append a line to outputFile 
printf "%s\n" "${j}a" "$lajnaZapis" "." "w" | ed -s sisa.txt

            fi
    done
done