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File Name arguments specify which files in the file system
tar operates on, when creating or adding to an archive, or which
archive members tar operates on, when reading or deleting from
an archive. See section The Five Advanced tar Operations.
To specify file names, you can include them as the last arguments on the command line, as follows:
tar operation [option1 option2 …] [file name-1 file name-2 …]
If a file name begins with dash (‘-’), precede it with ‘--add-file’ option to prevent it from being treated as an option.
By default GNU tar attempts to unquote each file or member
name, replacing escape sequences according to the following
table:
| Escape | Replaced with |
|---|---|
| \a | Audible bell (ASCII 7) |
| \b | Backspace (ASCII 8) |
| \f | Form feed (ASCII 12) |
| \n | New line (ASCII 10) |
| \r | Carriage return (ASCII 13) |
| \t | Horizontal tabulation (ASCII 9) |
| \v | Vertical tabulation (ASCII 11) |
| \? | ASCII 127 |
| \n | ASCII n (n should be an octal number of up to 3 digits) |
A backslash followed by any other symbol is retained.
This default behavior is controlled by the following command line option:
Enable unquoting input file or member names (default).
Disable unquoting input file or member names.
If you specify a directory name as a file name argument, all the files
in that directory are operated on by tar.
If you do not specify files, tar behavior differs depending
on the operation mode as described below:
When tar is invoked with ‘--create’ (‘-c’),
tar will stop immediately, reporting the following:
$ tar cf a.tar tar: Cowardly refusing to create an empty archive Try 'tar --help' or 'tar --usage' for more information.
If you specify either ‘--list’ (‘-t’) or
‘--extract’ (‘--get’, ‘-x’), tar
operates on all the archive members in the archive.
If run with ‘--diff’ option, tar will compare the archive with the contents of the current working directory.
If you specify any other operation, tar does nothing.
By default, tar takes file names from the command line. However,
there are other ways to specify file or member names, or to modify the
manner in which tar selects the files or members upon which to
operate. In general, these methods work both for specifying the names
of files and archive members.
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