Linux下常用的压缩解压命令[收藏]

%l hour ( 1..12)

%m month (01..12)

%M minute (00..59)

%n a newline

%N nanoseconds (000000000..999999999)

%p locale’s equivalent of either AM or PM; blank if not known

%P like %p, but lower case

%r locale’s 12-hour clock time (e.g., 11:11:04 PM)

%R 24-hour hour and minute; same as %H:%M

%s seconds since 1970-01-01 00:00:00 UTC

%S second (00..60)

%t a tab

%T time; same as %H:%M:%S

%u day of week (1..7); 1 is Monday

%U week number of year, with Sunday as first day of week (00..53)

%V ISO week number, with Monday as first day of week (01..53)

%w day of week (0..6); 0 is Sunday

%W week number of year, with Monday as first day of week (00..53)

%x locale’s date representation (e.g., 12/31/99)

%X locale’s time representation (e.g., 23:13:48)

%y last two digits of year (00..99)

%Y year

%z hhmm numeric timezone (e.g., -0400)

%:z hh:mm numeric timezone (e.g., -04:00)

%::z hh:mm:ss numeric time zone (e.g., -04:00:00)

%:::z numeric time zone with : to necessary precision (e.g., -04, 05:30)

%Z alphabetic time zone abbreviation (e.g., EDT)

By default, date pads numeric fields with zeroes. The following optional flags may follow ‘%’:

- (hyphen) do not pad the field _ (underscore) pad with spaces 0 (zero) pad with zeros ^
use upper case if possible # use opposite case if possible

After any flags comes an optional field width, as a decimal number; then an optional modifier,
which is either E to use the locale’s alternate representations if available, or O to use the
locale’s alternate numeric symbols if available.

我们也可以通过tar实现增量备份,这个就需要我们查看tar的官方文档.
-g, --listed-incremental F
create/list/extract new GNU-format incremental backup

-G, --incremental
create/list/extract old GNU-format incremental backup

如何跟踪软链接
-h, --dereference
don’t dump symlinks; dump the files they point to
保持原来的文件结构
-l, --one-file-system
stay in local file system when creating an archive


ALL OPTIONS
--atime-preserve
don’t change access times on dumped files

-b, --blocking-factor N
block size of Nx512 bytes (default N=20)

-B, --read-full-blocks
reblock as we read (for reading 4.2BSD pipes)

--backup BACKUP-TYPE
backup files instead of deleting them using BACKUP-TYPE simple or numbered

--block-compress
block the output of compression program fo

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