#!/bin/bash

sort -r -n infile.txt
sort -k 2 infile.txt
grep "2011/2012" infile.txt
grep "INF1T3" infile.txt | sort -n
grep -P "^\d+[24] " infile.txt | sort -k 2
grep "TLC1T3" infile.txt | grep "Da frequentare" | sort -n -r
grep -P "\<\w+A\w\wA\w+\>" infile.txt
cat infile.txt | cut -d " " -f1 | tr -d 0 | tr 8 1 | sort -n | uniq
cat infile.txt | cut -d " " -f1 | tr -d 0 | tr 8 1 | sort -n | uniq -d -c