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It may just be me... but... One thing I tend to do is extract entire tarballs, find the file I want, and then copy the file. Tar can be used to extract a single file from the archive. Further, it will extract the tree. Let's take a peek at the archive using head and the t option:
srv-8:STORE2 usr4$ tar -tjf non*.bz2 | head
sources/
sources/zlib-1.2.3.tar.gz
sources/glibc-2.3.5.tar.bz2
sources/shadow-4.0.18.1-useradd_fix-2.patch
sources/CleanSourceTrees.sh
sources/findutils-4.4.1.tar.gz
sources/less-429.tar.gz
.
.
.
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We know the structure. Likely everything is under sources. We want sources/mcj.rsd. Let's make sure we can find it first using t and v options:
srv-8:STORE2 usr4$ tar -tjvf non*.bz2 sources/mcj.rsd
-rwxr-xr-x root/root 52097024 2009-11-03 20:45:16 sources/mcj.rsd
srv-8:STORE2 usr4$
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Note that there is no sources directory:
srv-8:STORE2 usr4$ ls
ct mcjnonic.rsd
glcomp.txt mcjo.rsd
glibc.html network
glibc_files ngg
journal nonic
mcj nonic3.1.sources.tar.bz2
mcjl tkit
mcjngg.rsd
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The extraction will create the directory:
srv-8:STORE2 usr4$ tar -xjf nonic*.bz2 sources/mcj.rsd
srv-8:STORE2 usr4$ ls
ct mcjnonic.rsd
glcomp.txt mcjo.rsd
glibc.html network
glibc_files ngg
journal nonic
mcj nonic3.1.sources.tar.bz2
mcjl sources
mcjngg.rsd tkit
srv-8:STORE2 usr4$ ls sources
mcj.rsd
srv-8:STORE2 usr4$
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Note that you can match and extract multiple files:
srv-8:STORE2 usr4$ tar -tjvf non*.bz2 sources/XFree*
-rw-r--r-- root/root 11985968 2009-05-22 19:50:47 sources/XFree86-4.8.0-src-4.tgz
-rw-r--r-- root/root 3163472 2009-05-22 19:50:47 sources/XFree86-4.8.0-src-6.tgz
-rw-r--r-- root/root 5907777 2009-05-22 19:50:44 sources/XFree86-4.8.0-src-2.tgz
-rw-r--r-- root/root 10618247 2009-05-22 19:50:43 sources/XFree86-4.8.0-src-1.tgz
-rw-r--r-- root/root 12840281 2009-05-22 19:50:46 sources/XFree86-4.8.0-src-3.tgz
-rw-r--r-- root/root 4680606 2009-05-22 19:50:48 sources/XFree86-4.8.0-src-7.tgz
-rw-r--r-- root/root 4351386 2009-05-22 19:50:47 sources/XFree86-4.8.0-src-5.tgz
srv-8:STORE2 usr4$
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To extract from a directory on down, use:
tar -xjf archive.tar.bz2 dir/subdir/
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