What does "-" do in bash (e.g. sort -)

Question

What does - do in bash? Like sort - or uniq -?

score 0 · Answer 1 · answered Nov 26 '19 at 07:57

0

from the man pages of sort:

With no FILE, or when FILE is -, read standard input.

answered Nov 26 '19 at 07:57

Chris Maes

Thanks. This then begs the question of what's the difference between sort and sort - when I just do like: cat something | sort ..vs.. cat something | sort - – JoeSlav Nov 26 '19 at 07:59
According to the man page this doesn't change anything. When I test this it gives the exact same output, so **nothing**. – Chris Maes Nov 26 '19 at 08:03
thought so. thanks! – JoeSlav Nov 26 '19 at 08:05

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