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afio(1) -a
manipulate archives and files
-a           Preserve  the  last  access  times  (atimes)  of  the files read when making or verifying an
             archive.  Warning: if this option is used, afio will change the  last  inode  changed  times
             (ctimes)  of  these  files.   Thus,  this option cannot be used together with an incremental
             backup scheme that relies on the ctimes being preserved.

Examples

Create an archive with compressed files: find .... | afio -o -v -Z /dev/fd0H1440
Install (unpack) an archive with compressed files: afio -i -v -Z achive
Install (unpack) an archive with compressed files, protecting newer existing files: afio -i -v -Z -n achive
Create an archive with compressed files on floppy disks: find .... | afio -o -v -s 1440k -F -Z /dev/fd0H1440
Create an archive with all file contents encrypted by pgp: export PGPPASSFD=3 find .... | afio -ovz -Z -U -P pgp -Q -fc -Q +verbose=0 -3 3 archive 3<passphrasefile
Create an archive on recordable CDs using the cdrecord utility to write each CD: find .... | afio -o -b 2048 -s325000x -v '!cdrecord .... -'
Extract a single named file from an archive on /dev/tape: afio -i -v -Z -y /home/me/thedir/thefile /dev/tape (If these do not exist yet, afio will also create the enclosing directories home/me/myfiledir under current working directory.)
Extract files matching a pattern from an archive on /dev/tape: afio -i -v -Z -y '/home/me/*' /dev/tape (If these do not exist yet, afio will also create the enclosing directories home/me under current working directory.)
If your filesystem cannot handle files larger than 2GB, but you want to make an archive on that filesystem that is larger than 2GB, you use the following trick to split the archive into multiple files of each 1 GB: find /home | afio -o ... - | split -b1024m - archive. the files will be called archive.aa, archive.ab, etc. You can restore the whole archive using: cat archive.* | afio -i ... - The wildcard expansion by the shell will ensure that cat will read the parts in the right (alphabetic) order.

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