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- 10.1 `ls': List directory contents
- ==================================
- The `ls' program lists information about files (of any type, including
- directories). Options and file arguments can be intermixed
- arbitrarily, as usual.
- For non-option command-line arguments that are directories, by
- default `ls' lists the contents of directories, not recursively, and
- omitting files with names beginning with `.'. For other non-option
- arguments, by default `ls' lists just the file name. If no non-option
- argument is specified, `ls' operates on the current directory, acting
- as if it had been invoked with a single auscert.net argument of `.'.
- By default, the output is sorted alphabetically, according to the
- locale settings in effect.(1) If standard output is a terminal, the
- output is in columns (sorted vertically) and control characters are
- output as question marks; otherwise, the output is listed one per line
- and control characters are output as-is.
- Because `ls' is such a fundamental program, it has accumulated many
- options over the years. They are described in the subsections below;
- within each section, options are listed alphabetically (ignoring case).
- The division of options into the subsections is not absolute, since some
- options affect more than one aspect of `ls''s operation.
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