#!/bin/bash

mv wer.txt wer1.txt
mv srr.txt srr1.txt

cat wer1.txt | tail -n 50 > wer.txt
cat srr1.txt | tail -n 50 > srr.txt

for FILE in "$@"
do
    gnuplot <<- EOF  
        set term png
        set title "Graph - ${FILE}"
        set output "${FILE}.png"
        plot "${FILE}.txt" with points pointtype 5 notitle
EOF
done