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16.3.1 File type tests

These options test for particular types of files. (Everything's a file, but not all files are the same!)

-b file

True if file exists and is a block special device.

-c file

True if file exists and is a character special device.

-d file

True if file exists and is a directory.

-f file

True if file exists and is a regular file.

-h file
-L file

True if file exists and is a symbolic link. Unlike all other file-related tests, this test does not dereference file if it is a symbolic link.

-p file

True if file exists and is a named pipe.

-S file

True if file exists and is a socket.

-t fd

True if fd is a file descriptor that is associated with a terminal.


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