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How do I create a tar.gz from

  1. A list of FULL PATH files (such as /root/test/abcd/123.txt )
  2. that includes both directories AND files
  3. that preserves the ownership AND permissions of both files and directories when extracted?

This is how my list of files (dbfiles.log) looks like:

[oracle@test ~]$ cat dbfiles.log
/u01/app/oracle/product/12.2.0/dbhome_1/dbs/initDEVR.ora
/u01/app/oracle/product/12.2.0/dbhome_1/dbs/orapwDEVR
/u01/app/oracle/product/12.2.0/dbhome_1/dbs/spfileDEVR.ora
/u01/app/oracle/oradata/DEVR/control01.ctl
/u01/app/oracle/oradata/DEVR/control02.ctl
/u01/app/oracle/oradata/DEVR/redo01.log
/u01/app/oracle/oradata/DEVR/redo02.log
/u01/app/oracle/oradata/DEVR/redo03.log
/u01/app/oracle/oradata/DEVR/sysaux01.dbf
/u01/app/oracle/oradata/DEVR/system01.dbf
/u01/app/oracle/oradata/DEVR/temp01.dbf
/u01/app/oracle/oradata/DEVR/undotbs01.dbf
/u01/app/oracle/oradata/DEVR/users01.dbf
[oracle@test ~]$

This is how I am doing it today:

tar -czvf TARFILENAME.tar.gz -T dbfiles

However it requires manual permission configuration after extracting. By the way, I have to use sudo to extract the file, so directories get root:root ownership and not the original oracle:oinstall as needed.

I found some references suggesting that tar's flag --no-recursion could solve the problem:

tar -zcf file.tgz --no-recursion abc --recursion abc/def

I believe this is the right approach, but I'm not sure how can I make this work with my file list. Maybe using find to go through the list and send output to the tarball? I'm honestly not sure.

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  • tar -p preserves permissions – Panki Oct 15 '20 at 11:42
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    Read man tar or info tar. – waltinator Oct 15 '20 at 12:13
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for compressing you can use tar -cvpf filename.tar.gz directory.

while extracting, use --same-owner parameter. for e.g. tar -xvzf --same-owner filename.tar.gz

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  • A hostile person again removed a usefull comment. So let me add it again: The tar command does not implement an option called --same-owner, so you seem to use a tar clone. But in your example command line, any tar compatible command needs to use the argument --same-owner as argument to the f keyletter. If the tar clone you are using behaves otherwise, it is broken. – schily Oct 16 '20 at 14:18
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I end up finding the solution. Here it is in case someone else needs:

awk -F/ '{ d=$1; for (i=2; i <= NF; i++) { print d; d=d "/" $i }; print d }' dbfiles | awk '{ if (index(old,$0 "/") != 1) { old=$0; print } }' | tar czvf $LOCALFS/$TARFILENAME.tar.gz --no-recursion -T -

Thanks to who have answered my initial question.

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