#!/bin/bash
filename=tran_crossings_exp_.txt
i=${filename:${#filename}-5:1}
if [ $i = "_" ]; then
echo ${filename/?./.}
filename="$(echo ${filename/?./.})"
echo "$filename"
fi
echo "$filename"
IyEvYmluL2Jhc2gKIApmaWxlbmFtZT10cmFuX2Nyb3NzaW5nc19leHBfLnR4dAppPSR7ZmlsZW5hbWU6JHsjZmlsZW5hbWV9LTU6MX0KCmlmIFsgJGkgPSAiXyIgXTsgdGhlbgoJZWNobyAke2ZpbGVuYW1lLz8uLy59CglmaWxlbmFtZT0iJChlY2hvICR7ZmlsZW5hbWUvPy4vLn0pIgoJZWNobyAiJGZpbGVuYW1lIgpmaQoKZWNobyAiJGZpbGVuYW1lIg==