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Dan Angelescu wrote:
> Va salut!
>
> Stiti cum as putea selecta a doua linie din outputul
> lui df ( mai precis spatiul liber) din df /dev/adxxx ?
>
> Multumesc anticipat.
Pentru scripturi shell cu o combinate de head si tail.
In general selectarea an <M> linii incepand cu linia <N> se poate face cu:
<comanda> | head -<N> | tail -<M>
particularizand (comanda = df /dev/adxx, M = 1, N = 2):
df /dev/adxxx | head -2 | tail -1
in cazu asta output-ul avind doar doua linii, head-ul nu mai este
necesar si varianta mai simpla este:
df /dev/adxxx | tail -1
Ex.
eris# df | head -2 | tail -1
/dev/ad0s1a 1012974 100364 831574 11% /
eris# df /dev/ad0s1a | tail -1
/dev/ad0s1a 1012974 100364 831574 11% /
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