diff

Imam dva fajla:
test1:
666
555
444
333
222
111

test2:
111
222
333
444
555
666
777
888
999

In ko poženem:
diff test1 test2 dobim tole:

1,5d0
< 666
< 555
< 444
< 333
< 222
6a2,9
> 222
> 333
> 444
> 555
> 666
> 777
> 888
> 999

Kaj pa moram narediti da bom dobil samo:

> 777
> 888
> 999

Torej da mi bo izpisal samo tiste stringe iz test2 katerih ni v test1?

 grep -vf test1 test2 

sortiraj potem naredi diff