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Full Discussion: Tar extract: remap uid gid ?
Top Forums Shell Programming and Scripting Tar extract: remap uid gid ? Post 302953908 by Don Cragun on Wednesday 2nd of September 2015 02:00:03 PM
Old 09-02-2015
Quote:
Originally Posted by fidodido
Thanks for the suggestion guys.

... ... ...

Don_Cragun, those options (uid,gid,uname,gname) don't seem to work with the version of pax that came with this RHEL 6.4, which is pax 3.4 (BSD). Also, wouldn't that extract and change all of the files?
Yes. I did preface the suggestion with:
Quote:
If you are trying to extract all files from a tar archive with a given user ID (or user name) and group ID (or group name) you could use:
Then I gave you suggestions that should be available on any version of the pax utility that would allow root to extract a subset of files from an archive and change the owner and group to specified values for the files extracted on that invocation.

I should have explicitly stated that none of the given suggestions would work unless you were running with appropriate privileges as Corona688 mentioned. I assumed that you already knew that unprivileged users can't create a file owned by someone else.
 

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qmail-users(5)							File Formats Manual						    qmail-users(5)

NAME
qmail-users - assign mail addresses to users OVERVIEW
The file /var/lib/qmail/users/assign assigns addresses to users. For example, =joe.shmoe:joe:503:78:/home/joe::: says that mail for joe.shmoe should be delivered to user joe, with uid 503 and gid 78, as specified by /home/joe/.qmail. Assignments fed to qmail-newu will be used by qmail-lspawn to control qmail-local's deliveries. See qmail-newu(8). A change to /var/lib/qmail/users/assign will have no effect until qmail-newu is run. STRUCTURE
/var/lib/qmail/users/assign is a series of assignments, one per line. It ends with a line containing a single dot. Lines must not contain NUL. SIMPLE ASSIGNMENTS
A simple assignment is a line of the form =local:user:uid:gid:homedir:dash:ext: Here local is an address; user, uid, and gid are the account name, uid, and gid of the user in charge of local; and messages to local will be controlled by homedir/.qmaildashext. If there are several assignments for the same local address, qmail-lspawn will use the first one. local is interpreted without regard to case. WILDCARD ASSIGNMENTS
A wildcard assignment is a line of the form +loc:user:uid:gid:homedir:dash:pre: This assignment applies to any address beginning with loc, including loc itself. It means the same as =locext:user:uid:gid:homedir:dash:preext: for every string ext. A more specific wildcard assignment overrides a less specific assignment, and a simple assignment overrides any wildcard assignment. For example: +:alias:7790:2108:/var/lib/qmail/alias:-:: +joe-:joe:507:100:/home/joe:-:: =joe:joe:507:100:/home/joe::: The address joe is handled by the third line; the address joe-direct is handled by the second line; the address bill is handled by the first line. SEE ALSO
qmail-pw2u(8), qmail-newu(8), qmail-lspawn(8) qmail-users(5)
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