rar.txt

linux下面使用的rar 解压缩的东西

            Example:

            add all files from the current directory to the solid archive
            '-StrangeName'

            RAR a -s -- -StrangeName

    -ac     Clear Archive attribute after compression or extraction
            (Windows version only).


    -ag[format]
            Generate archive name using the current date and time.

            Appends the current date string to an archive name when
            creating an archive. Useful for daily backups.

            Format of the appending string is defined by the optional
            "format" parameter or by "YYYYMMDDHHMMSS" if this parameter
            is absent. Format string may include the following characters:

            Y   - year
            M   - month
            MMM - month name as text string (Jan, Feb, etc.)
            W   - a week number (a week starts with Monday)
            A   - day of week number (Monday is 1, Sunday - 7)
            D   - day of month
            E   - day of year
            H   - hours
            M   - minutes (treated as minutes if encountered after hours)
            S   - seconds

            All other characters are added to an archive name without
            changes.

            Examples:

            1) use the default YYYYMMDDHHMMSS format

               rar a -ag backup

            2) use DD-MMM-YY format

               rar a -agDD-MMM-YY backup

            3) use YYYYMMDDHHMM format

               rar a -agYYYYMMDDHHMM backup

            4) use YYYY-WW-A format

               rar a -agYYYY-WW-A backup


    -ao     Add files with Archive attribute set
            (Windows version only).

            Example:

            add all disk C: files with Archive attribute set
            to the 'f:backup' and clear files Archive attribute

            rar a -r -ac -ao f:backup c:\*.*


    -ap     Set path inside archive. This path is merged to file
            names when adding files to an archive and removed
            from file names when extracting.

            For example, if you wish to add the file 'readme.txt'
            to the directory 'DOCS\ENG' of archive 'release',
            you may run:

            rar a -apDOCS\ENG release readme.txt

            or to extract 'ENG' to the current directory:

            rar x -apDOCS release DOCS\ENG\*.*


    -as     Synchronize archive contents

            If this switch is used when archiving, those archived files
            which are not present in the list of the currently added
            files, will be deleted from archive. It is convenient to use
            this switch in combination with -u (update) to synchronize
            contents of an archive and an archiving directory.

            For example, after the command:

            rar a -u -as backup sources\*.cpp

            the archive 'backup.rar' will contain only *.cpp files
            from directory 'sources', all other files will be deleted
            from the archive. It looks similar to creating a new archive,
            but with the one important exception: if no files are
            modified since a last backup, the operation is performed
            much faster than creation of a new archive.


    -av     Put authenticity verification (registered versions only).
            RAR will put, in every new and updated archive, information
            concerning the creator, last update time and archive name.

            If an archive, containing authenticity verification, is being
            modified and this switch is not specified, the authenticity
            verification information will be removed.

            When extracting, testing, listing or updating and archive with
            the '-av' switch, RAR will perform integrity validation and
            display the message:

              Verifying authenticity information ...

            In the case of successful authenticity verification, the message
            'Ok', creator name and last update information will be
            displayed. In the case of authenticity verification failure, the
            message 'FAILED' will be displayed.

            The Authenticity Verification feature, '-av,' is recommended for
            use with archives in a software distribution environment.

            In order to enable the Authenticity verification feature, the
            program MUST be registered. Please contact your local
            distribution site or the world-wide distribution center.


    -av-    Disable authenticity verification checking or adding.


    -cfg-   Disable read configuration and environment.


    -cl     Convert file names to lower case.


    -cu     Convert file names to upper case.


    -c-     Disable comments show.


    -df     Delete files after archiving

            Move files to archive. This switch in combination with
            the command "A" performs the same action as the command "M".
           

    -dh     Open shared files

            Allows to process files opened by other applications
            for writing.

            This option could be dangerous, because it allows
            to archive a file, which at the same time is modifying
            by an other application, so use it carefully.


    -ds     Do not sort files while adding to a solid archive.


    -ed     Do not add empty directories

            This switch indicates that empty directories are not to be
            stored in the created archive.


    -ee     Do not process extended attributes

            Disables saving and restoring extended file attributes.
            Only for OS/2 and BeOS versions.


    -ep     Exclude paths from names. This switch enables files to be added
            to an archive without including the path information. This
            could, of course, result in multiple files existing in the
            archive with the same name.


    -ep1    Exclude base dir from names. Do not store the path entered in
            the command line.

            Example:

            all files and directories from the directory tmp will be added
            to the archive 'test', but the path in archived names will not
            include 'tmp\'

            rar a -ep1 -r test tmp\*

            This is equivalent to the commands:

            cd tmp
            rar a -r ..\test
            cd ..


    -ep2    Expand paths to full. Store full file paths (except a drive
            letter and leading path separator) when archiving.
    

    -e<atr> Specifies file exclude attributes mask. <atr> is a number in the
            decimal, octal (with leading '0') or hex (with leading '0x')
            format. If result of bitwise AND between <atr> and file
            attributes is nonzero, then file would not be added to archive.

            In the Windows version also is possible to use instead of
            digital mask symbols D, S, H, A and R to denote directories
            and files with system, hidden, archive and read-only attributes.
            The order in which the attributes are given is not significant.


    -f      Freshen files. May be used with archive extraction or creation.
            The command string "a -f" is equivalent to the command 'f', you
            could also use the switch '-f' with the commands 'm' or 'mf'. If
            the switch '-f' is used with the commands 'x' or 'e', then only
            old files would be replaced with new versions extracted from the
            archive.


    -idp    Disable percentage indicator.

            May be useful when redirecting output to a file.


    -ierr   Send all messages to stderr.


    -ilog   Log errors to file (registered version only).


    -inul   Disable all messages.


    -isnd   Enable sound.


    -k      Lock archive. Any command which intends to change the archive
            will be ignored.


    -kb     Keep broken extracted files.

            RAR, by default, deletes files with CRC errors after
            extraction. The switch -kb specifies that files with
            CRC errors should not be deleted.


    -m<n>   Set compression method:

       -m0   store     do not compress file when adding to archive
       -m1   fastest   use fastest method (less compressive)
       -m2   fast      use fast compression method
       -m3   normal    use normal (default) compression method
       -m4   good      use good compression method (more
                       compressive, but slower)
       -m5   best      use best compression method (slightly more
                       compressive, but slowest)

            By default RAR uses -m3 method (Normal compression).


    -md<n>  Select dictionary size <n> in KB. Must be 64, 128, 256, 512 or
            1024 or a letter 'a', 'b', 'c', 'd' or 'e' respectively.

            The sliding dictionary is a special memory area used by the
            compression algorithm. If the size of the file being compressed
            (or the total files size in the case of a solid archive) is
            greater than the dictionary size, then increasing the dictionary
            size will generally increase compression ratio, decrease packing
            speed and increase memory requirements.

            Default sliding dictionary size in 32-bit versions of RAR is 1024
            KB. In RAR versions for Unix, Windows and other 32-bit platforms
            it is possible to select five different sizes: 64, 128, 256, 512
            or 1024 KB. Besides, speed of extraction in these versions does
            not depend upon dictionary size. In 16-bit version RAR for DOS
            the sliding dictionary size is fixed and equal to 64 KB.
            Though RAR for DOS provides extracting files from large
            dictionary archives.

            The amount of memory required to create large dictionary
            archives is determined as 5*<dictionary size>+2560KB. About 1 Mb
            is required for extraction and 5*<dictionary size>+3584KB to
            update solid archives.

            RAR for DOS can extract from large dictionary archives using
            conventional, EMS and disk memory. If no EMS or disk
            cache is available, the operation may slow down significantly. RAR
            for DOS cannot convert large dictionary archives to SFX with the
            default SFX module and cannot update such solid archives.

            Example:

            RAR a -s -mdd sources *.asm
                or
            RAR a -s -md512 sources *.asm

            Will create a solid archive using a 512 KB dictionary.

    -mm[f]  Multimedia compression [force]. Enables a special multimedia
            compression algorithm. It is intended to compress digital audio
            data containing up to four 8-bit or two 16-bit channels. It
            works well with  true color (24-bit) bitmaps as well.
            Improvement in the compression ratio up to 30% over the normal
            compression may be achieved.

            When archiving file in the multimedia mode RAR performs
            intelligent data analysis and may use, for different parts of
            the file, general or multimedia compression depending on which
            is more suitable. Such analysis allows optimum performance when
            different data types are merged in the same file. The 'f'
            modifier forces the multimedia compression to be used for the
            whole file; it may help when certain multimedia files are to be
            compressed, but in most cases only increases archive size.

            Both the -m<N> "Set compression method" and -s "Create solid
            archive" switches can be used with multimedia compression,
            but they are in effect for those file parts where the general
            algorithm applies.

            If -mm is used with non-multimedia data, the compression ratio
            is usually unchanged in comparison with the general method, but
            due to multimedia analysis overhead, the packing speed is always
            slower. The usage of -mm is not recommended with normal data
            files.

            Example:

            rar a -m5 -s -mm All_My_Songs.rar *.wav

            Use the tightest compression method, solid archiving and
            multimedia compression with smart analysis, which method
            should be applied for particular data.


    -ol     Save symbolic links as the link instead of the file.
            Unix and BeOS versions only.


    -os     Save NTFS streams. Win32 version only.

            This switch has meaning only for NTFS file system under
            Windows NT and allows to save alternative data streams
            associated with a file. It is especially important under
            Windows 2000, which uses streams to keep some file dependent
            information like file descriptions. If you use RAR to backup
            your NTFS disks, it is recommended to specify this switch.


    -ow     Use this switch when archiving to save file security
            information and when extracting to restore it.

            Unix and BeOS RAR versions save file owner and group
            when using this switch.