How to read from file, which name is "-"

how to rea开发者_开发百科d content of a file which name is "-" (dash, not stdin)?

From any programming language, just open the file. A single dash is certainly no special file name and can be opened like any other one.

From a shell, you can use ./-:

$ some_command --out foo --in ./-

Assuming you're using a utility that represents STDIN/STDOUT with -, try using ./- or -- -.

cat <- will work under *nix.

No differently that from any other file.