topic Re: using tar and grep together in Operating System - HP-UX

using tar and grep together

Naeem Ali_2 — Wed, 19 May 2004 11:52:13 GMT

hi,

I have a directory structure with 50000 sub-directories, totalling 30 gbytes.

i would like to tar it up, however, what i would lik eto do is grep out sub-directories with certain specific names in them.

e.g. grep -v sun and a grep -v irix or even a grep -v French

is there a way I can do all this on one command line?

Re: using tar and grep together

harry d brown jr — Wed, 19 May 2004 12:58:32 GMT

Yes, get GNU's TAR from http://hpux.cs.utah.edu/hppd/hpux/Gnu/tar-1.13.25/

and you can do slick things like:

cd YOURbigDIRECTORY
/opt/tar/bin/tar --create --verbose --file=/var/appl/crazy.tar --exclude="*\/DNS
CACHE_INSTALLDIRhp11.11\/*" --exclude "*\/OraInstall200[2-4]-[0-9][0-9]-[0-9][0-
9]_[0-9][0-9]-[0-9][0-9]-[0-9][0-9]PM\/*" --exclude "*\/PHTXT\/*" --gzip ./*

The exclude will still create the upper directory entry, but it will NOT archive any files under it!

If you use gzip or compress on your archive, then you have to tell the --list option how the archive was compressed (--gzip in this case):
/opt/tar/bin/tar --list --file=/var/appl/crazy.tar --gzip|more

live free or die
harry

Re: using tar and grep together

Rodney Hills — Wed, 19 May 2004 13:49:48 GMT

You could also use "pax" that is now standard with hpux11.

find /mydir -type d -print| grep -v irix | pax -wd -x utar >mysave.tar

HTH

-- Rod Hills

Re: using tar and grep together

curt larson_1 — Wed, 19 May 2004 13:55:06 GMT

you can always use find with the prune options

find ./ -prune ... | tar ...

an example using prune
http://forums1.itrc.hp.com/service/forums/questionanswer.do?admit=716493758+1084992752438+28353475&threadId=245727

or
find ./ | grep -vE "sun|irix|French" | tar

but you might exclude more then you think that way

Re: using tar and grep together

john korterman — Wed, 19 May 2004 13:56:58 GMT

Hi,
you could try and bend the find command a litte and use the not operator for excluding filenames, e.g.:
# find . -type f ! -name "*sun*" ! -name "*French*"|xargs tar cvf - >mytar.tar

mytar.tar should be located out of reach of the find command.

regards,
John K.

Re: using tar and grep together

Rodney Hills — Wed, 19 May 2004 14:17:09 GMT

Curt,

"tar" doesn't read the list of files to backup from stdin, I think you are thinking of "cpio".

John,

Unfortunatelly if their are a lot of directories the xargs command could run the tar command multiple times. Thus the file mytar.tar will have whatever the last tar command that was executed.

-- Rod Hills