GNU Info

(elisp)Information about Files

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Enter node , (file) or (file)node

Information about Files
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   The functions described in this section all operate on strings that
designate file names.  All the functions have names that begin with the
word `file'.  These functions all return information about actual files
or directories, so their arguments must all exist as actual files or
directories unless otherwise noted.

Testing Accessibility

Is a given file readable? Writable?

Kinds of Files

Is it a directory? A symbolic link?

Truenames

Eliminating symbolic links from a file name.

File Attributes

How large is it? Any other names? Etc.