On 2021-05-05 09:33-0400 "Walter Dnes" <waltd...@waltdnes.org> wrote:
> tar version > > #################################################### > tar (GNU tar) 1.34 > Copyright (C) 2021 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later > <https://gnu.org/licenses/gpl.html>. This is free software: you are > free to change and redistribute it. There is NO WARRANTY, to the > extent permitted by law. > > Written by John Gilmore and Jay Fenlason. > #################################################### > > I'm passing on this solution to help others avoid my frustration and > wasted time. If you've done "RTFM" on tar, you'll find out that "TFM" > is broken or out-of-date or whatever, re: "--exclude=PATTERN". I'm > fighting the urge to turn this into a rant. Here's my situation... > > I either log in as root or "su -" and then "cd /home". I want to > tar up /home/waltdnes, and transfer it to another machine. While I'm > at it, I want to exlude directory /home/waltdnes/.cache/ and all *.xz > files in directory /home/waltdnes/pm/ The "--exclude=" never worked. > After much hair pulling, I was ready to give up on the exclude, and > simply transfer all the unnecessary garbage. > > Then "I asked Mr. Google". It seems that I wasn't the only person > running into problems. After some searching, I finally found a syntax > that works... > > #################################################### > #!/bin/bash > export GZIP=-9 > tar cvzf wd.tgz --exclude ".cache/*" --exclude "pm/*.xz" waltdnes > #################################################### > > Notes... > > 1) This is obviously not in line with the man page. Specifically, > "--exclude" is followed by one space, not an equals sign. > > 2) ***THERE MUST BE EXACTLY ONE SPACE BETWEEN EACH WORD*** > > 3) All directories and/or files to exclude must be listed as relative > paths to the directory being tarred, i.e. last parameter on the > command line. > > 4) I don't know the maximum line-length, which would limit the number > of --exclude entries. In those cases, I wonder if > "--exclude-from=FILE" works as "--exclude-from FILE". > This works fine here with “tar (GNU tar) 1.34”: $ mkdir -p a/b $ touch a/file a/b/file $ touch a/file.xz a/b/file.xz $ tree a a ├── b │ ├── file │ └── file.xz ├── file └── file.xz 1 directory, 4 files $ tar -cvzf test.tar.gz --exclude="a/file" --exclude="a/b/*.xz" a a/ a/file.xz a/b/ a/b/file $ tar -tf test.tar.gz a/ a/file.xz a/b/ a/b/file You can find out the maximum length of the command-line with `getconf ARG_MAX`. -- Get my PGP key with `gpg --locate-keys tasty...@tastytea.de` or at <https://tastytea.de/tastytea.asc>.
pgp5z0UTIcGOh.pgp
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