Re: tar Syntax Help
On 2005-07-07 20:20, Drew Tomlinson [EMAIL PROTECTED] wrote: I'm trying to copy an entire file system while using an exclude file to avoid copying things such as /dev, /proc, etc. I've read the man page and found the -X or --exclude-from tar option. I've create a file called /exclude.list. It contains lines such as: /exclude.list /dev /proc But I can't figure out how to form the correct command line. I basically want to do this: tar -cvf - --exclude-from /exclude.list -C / . | tar xpf - -C . Perhaps not what you're looking for, but you can perform a similar exclude operation on the output of find(1), using one or more grep(1) patterns and then feed the rest to cpio(1) in 'pass-through' mode: # cd / # find / | \ grep -v '^/dev/.*' | grep -v '^/proc/.*' | \ grep -v '^/mnt/.*' | \ cpio -p -dmvu /mnt The most important detail above is that the childen of /dev, /proc and /mnt are excluded, but not the directories themselves. This is why I trim from the output of find '^/dev/.*' but not '^/dev', '^/proc/.*' but not '^/proc', etc. - Giorgos ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tar Syntax Help
On 7/7/05, Drew Tomlinson [EMAIL PROTECTED] wrote: I'm trying to copy an entire file system while using an exclude file to avoid copying things such as /dev, /proc, etc. I've read the man page and found the -X or --exclude-from tar option. I've create a file called /exclude.list. It contains lines such as: /exclude.list /dev /proc But I can't figure out how to form the correct command line. I basically want to do this: tar -cvf - --exclude-from /exclude.list -C / . | tar xpf - -C . I've search the web and found examples that look similar to the above but this does not work for me. tar attempts to copy /dev and I get all the associated errors. I've tried other placements of either -X, X, and --exclude from on the command line various things happen from it just being ignored to tar thinking I want to create and archive named -X, etc., to tar trying to add a file named -X, etc. to the current archive. I'm at a loss. I'm using 4.11 and trying to make a good backup before upgrading to 5.4. Can anyone tell me the secret incantation to make this work? Thanks, Drew -- Visit The Alchemist's Warehouse Magic Tricks, DVDs, Videos, Books, More! http://www.alchemistswarehouse.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] I wrote this years ago, http://www.justlinux.com/forum/showpost.php?p=294384postcount=1 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
tar Syntax Help
I'm trying to copy an entire file system while using an exclude file to avoid copying things such as /dev, /proc, etc. I've read the man page and found the -X or --exclude-from tar option. I've create a file called /exclude.list. It contains lines such as: /exclude.list /dev /proc But I can't figure out how to form the correct command line. I basically want to do this: tar -cvf - --exclude-from /exclude.list -C / . | tar xpf - -C . I've search the web and found examples that look similar to the above but this does not work for me. tar attempts to copy /dev and I get all the associated errors. I've tried other placements of either -X, X, and --exclude from on the command line various things happen from it just being ignored to tar thinking I want to create and archive named -X, etc., to tar trying to add a file named -X, etc. to the current archive. I'm at a loss. I'm using 4.11 and trying to make a good backup before upgrading to 5.4. Can anyone tell me the secret incantation to make this work? Thanks, Drew -- Visit The Alchemist's Warehouse Magic Tricks, DVDs, Videos, Books, More! http://www.alchemistswarehouse.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tar Syntax Help
I'm trying to copy an entire file system while using an exclude file to avoid copying things such as /dev, /proc, etc. I've read the man page and found the -X or --exclude-from tar option. I've create a file called /exclude.list. It contains lines such as: /exclude.list /dev /proc But I can't figure out how to form the correct command line. I basically want to do this: tar -cvf - --exclude-from /exclude.list -C / . | tar xpf - -C . I've search the web and found examples that look similar to the above but this does not work for me. tar attempts to copy /dev and I get all the associated errors. I've tried other placements of either -X, X, and --exclude from on the command line various things happen from it just being ignored to tar thinking I want to create and archive named -X, etc., to tar trying to add a file named -X, etc. to the current archive. I'm at a loss. I'm using 4.11 and trying to make a good backup before upgrading to 5.4. Can anyone tell me the secret incantation to make this work? -X only works with specific files, not entire directories. You will need to list every file in /dev or /proc that you want to exclude, which is somewhat painful. The backup strategy that I've used on production systems is to back up each directory in a separate tar file. Not only does this work quicker (since you can fire off multiple tar sessions in parallel), but you can avoid special directories like /dev and /proc, temporary mount points such as /cdrom and /mnt, and other directories that don't need to backed up, such as /tmp. It's also quite handy when you've got large volumes of data (such as in /home) and the complete system image won't fit on a single tape. The general notion of my script is the following: #!/bin/sh for i in bin boot etc home modules root sbin usr var do tar cvzf /backups/$i.`date +%Y%m%d`.tar.gz $i done wait echo Backups completed! -- Matt Emmerton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tar Syntax Help
On 7/7/2005 8:38 PM Matt Emmerton wrote: I'm trying to copy an entire file system while using an exclude file to avoid copying things such as /dev, /proc, etc. I've read the man page and found the -X or --exclude-from tar option. I've create a file called /exclude.list. It contains lines such as: /exclude.list /dev /proc But I can't figure out how to form the correct command line. I basically want to do this: tar -cvf - --exclude-from /exclude.list -C / . | tar xpf - -C . I've search the web and found examples that look similar to the above but this does not work for me. tar attempts to copy /dev and I get all the associated errors. I've tried other placements of either -X, X, and --exclude from on the command line various things happen from it just being ignored to tar thinking I want to create and archive named -X, etc., to tar trying to add a file named -X, etc. to the current archive. I'm at a loss. I'm using 4.11 and trying to make a good backup before upgrading to 5.4. Can anyone tell me the secret incantation to make this work? -X only works with specific files, not entire directories. You will need to list every file in /dev or /proc that you want to exclude, which is somewhat painful. The backup strategy that I've used on production systems is to back up each directory in a separate tar file. Not only does this work quicker (since you can fire off multiple tar sessions in parallel), but you can avoid special directories like /dev and /proc, temporary mount points such as /cdrom and /mnt, and other directories that don't need to backed up, such as /tmp. It's also quite handy when you've got large volumes of data (such as in /home) and the complete system image won't fit on a single tape. The general notion of my script is the following: #!/bin/sh for i in bin boot etc home modules root sbin usr var do tar cvzf /backups/$i.`date +%Y%m%d`.tar.gz $i done wait echo Backups completed! Thanks for your reply. I can do it this way and will for the sake of speed. However this post suggests that one can use wildcards. http://lists.freebsd.org/pipermail/freebsd-questions/2004-July/052207.html Have you ever tried that? I did but was not successful. Thanks, Drew -- Visit The Alchemist's Warehouse Magic Tricks, DVDs, Videos, Books, More! http://www.alchemistswarehouse.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tar Syntax Help
On 7/7/2005 8:38 PM Matt Emmerton wrote: I'm trying to copy an entire file system while using an exclude file to avoid copying things such as /dev, /proc, etc. I've read the man page and found the -X or --exclude-from tar option. I've create a file called /exclude.list. It contains lines such as: /exclude.list /dev /proc But I can't figure out how to form the correct command line. I basically want to do this: tar -cvf - --exclude-from /exclude.list -C / . | tar xpf - -C . I've search the web and found examples that look similar to the above but this does not work for me. tar attempts to copy /dev and I get all the associated errors. I've tried other placements of either -X, X, and --exclude from on the command line various things happen from it just being ignored to tar thinking I want to create and archive named -X, etc., to tar trying to add a file named -X, etc. to the current archive. I'm at a loss. I'm using 4.11 and trying to make a good backup before upgrading to 5.4. Can anyone tell me the secret incantation to make this work? -X only works with specific files, not entire directories. You will need to list every file in /dev or /proc that you want to exclude, which is somewhat painful. The backup strategy that I've used on production systems is to back up each directory in a separate tar file. Not only does this work quicker (since you can fire off multiple tar sessions in parallel), but you can avoid special directories like /dev and /proc, temporary mount points such as /cdrom and /mnt, and other directories that don't need to backed up, such as /tmp. It's also quite handy when you've got large volumes of data (such as in /home) and the complete system image won't fit on a single tape. The general notion of my script is the following: #!/bin/sh for i in bin boot etc home modules root sbin usr var do tar cvzf /backups/$i.`date +%Y%m%d`.tar.gz $i done wait echo Backups completed! Thanks for your reply. I can do it this way and will for the sake of speed. However this post suggests that one can use wildcards. http://lists.freebsd.org/pipermail/freebsd-questions/2004-July/052207.html Have you ever tried that? I did but was not successful. I just tried this out (on 5.4-REL) and the wildcards appear to work fine. If you specify wildcards on the command line (ie, with --exclude or -X), you must quote them to prevent premature expansion. -- Matt ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tar Syntax Help
Try leaving off the leading / from each line in your exclude list. I think what is happening is that, by default, tar drops the leading / from each file it tars up so that when you untar, it extracts all files relative to the current directory. I think because of this, when you specify absolute paths in your exclude file, tar fails to match them. Alternatively, if you want to keep the absolute paths, try tar with the -P option. Your exclude list may work as is in that case. I haven't ever tried that myself though. Just be careful when you untar if you do use that switch. Carl On Thu, Jul 07, 2005 at 08:20:50PM -0700, Drew Tomlinson wrote: I'm trying to copy an entire file system while using an exclude file to avoid copying things such as /dev, /proc, etc. I've read the man page and found the -X or --exclude-from tar option. I've create a file called /exclude.list. It contains lines such as: /exclude.list /dev /proc But I can't figure out how to form the correct command line. I basically want to do this: tar -cvf - --exclude-from /exclude.list -C / . | tar xpf - -C . I've search the web and found examples that look similar to the above but this does not work for me. tar attempts to copy /dev and I get all the associated errors. I've tried other placements of either -X, X, and --exclude from on the command line various things happen from it just being ignored to tar thinking I want to create and archive named -X, etc., to tar trying to add a file named -X, etc. to the current archive. I'm at a loss. I'm using 4.11 and trying to make a good backup before upgrading to 5.4. Can anyone tell me the secret incantation to make this work? Thanks, Drew -- Visit The Alchemist's Warehouse Magic Tricks, DVDs, Videos, Books, More! http://www.alchemistswarehouse.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
