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#1
04-23-2006
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Selective restore from a cpio tape archive
Hi,
I use following command to restore data from my cpio tape archive: $cpio -icvd < /dev/rct0 But this'll restore all tape contents to the current path, what if I want only selected files from the tape, suppose I want /home/compdir/home2/Rev83/data/PL/01/*.* files to be restored from tape archive to my current path only, nothing else, which command I should use to achieve this? Any help would be highly appreciated. Thnx & Rgrds, Tayyab 
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#2
04-23-2006
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You can simply specify extraction patterns to cpio, but I prefer to use pax when redirecting a restoration....
You'll have to adjust this to your specific circumstances, but say I have a cpio archive, /var/tmp/tmp.cpio (this could just be your tape device), and I want to restore /home/zb/tmp/*something* to /var/tmp/output... then I'd do... Code:
pax -r -s ',^/home/zb/tmp/,/var/tmp/output/,' -f /var/tmp/tmp.cpio "*something*" If you don't have pax installed, tell us which OS you're using. And... if you don't actually want to redirect output, just specify the pattern to cpio, something like: Code:
cpio -icvd "*somepattern*" < input_archive ZB
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#3
04-23-2006
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Hi,
Thnx for the reply. I tried pax with following paramters: Code:
# pax -r -s ',^/home/compdir/home2/Rev83/data/PL/01,/home/temp,' -f /dev/rct0 "*PL*" UX:pax: WARNING: /dev/rct0 : This doesn't look like a tar archive UX:pax: WARNING: /dev/rct0 : Skipping to next file... UX:pax: ERROR: *PL* not found in archive Code:
#cpio -icvd "home/compdir/home2/Rev83/data/PL/01/*.*" < /dev/rct0 Pls advise. Rgrds, Tayyab
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#4
04-23-2006
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With the cpio command, you probably need to include the leading "/" in the pattern name, otherwise it will not match any files in the archive.
Unfortunately I'm at home at the moment so do not have access to a tape drive to test pax reading from cpio archives stored on tape - on my Linux box at home it can read a cpio archive file ok. Which OS are you using? EDIT: with the pax command, try something like this Code:
# pax -r -s ',^/home/compdir/home2/Rev83/data/PL/01,/home/temp,' "*PL*" < /dev/rct0 ZB Last edited by zazzybob; 04-23-2006 at 06:46 AM.
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#5
04-23-2006
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my dear thnx for your prompt reply, but still no joy.
Code:
# pax -r -s ',^/home/compdir/home2/Rev83/data/PL/01,/home/temp,' "*PL*" < /dev/rct0 UX:pax: WARNING: - : This doesn't look like a tar archive UX:pax: WARNING: - : Skipping to next file... UX:pax: ERROR: *PL* not found in archive Code:
# cpio -icvd "/home/compdir/home2/Rev83/data/PL/01/*.*" < /dev/rct0 thnx & rgrds, Tayyab
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#7
04-23-2006
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Yeah, all files have . in names like:
Code:
# ls 01.PL.accts 01.PL.apymt 01.PL.balnc 01.PL.ctrls 01.PL.ptext 01.PL.accts.ir 01.PL.atran 01.PL.baxbf 01.PL.dfpst 01.PL.systm 01.PL.accts.wd 01.PL.atype 01.PL.cpdoc 01.PL.histr 01.PL.trans 01.PL.accts.wi 01.PL.ausig 01.PL.ctgry 01.PL.paymt
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