compare.sh

#!/bin/bash

# Check if the correct number of arguments is provided
if [ "$#" -ne 4 ]; then
    echo "Usage: $0 <File1> <File2> <OutputFile1> <OutputFile2>"
    exit 1
fi

file1=$1
file2=$2
output1=$3
output2=$4

# Function to compare values and generate output
compare_and_output() {
    while IFS=" " read -r id1 col1 _; do
        IFS=" " read -r id2 col2 _
        if [ "$col1" != "$col2" ]; then
            echo "$id1 $col1 $col2" >> "$output1"
            echo "$col1 $col2" >> "$output2"
        fi
    done < <(paste <(cut -d" " -f2,3 "$file1") <(cut -d" " -f2,3 "$file2"))
}

# Compare values and generate output
compare_and_output

# Count occurrences of each unique qualitative difference
sort "$output2" | uniq -c > "$output2.tmp"
mv "$output2.tmp" "$output2"

echo "Comparison completed. Results saved in $output1 and $output2."