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(sh-utils.info)File type tests

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Enter node , (file) or (file)node

File type tests
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   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.

`-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 opened on a terminal.  If FD is omitted, it defaults
     to 1 (standard output).