ZIPPING in HP-UX

[panchpan]

Hello.
I have some 1000 files in a dir say /home/pp/ and i wish to zip all of them into one file at another location say /home/pp/tmp/
Could you please let me know the command to zip on HP-UX and then unzip for using them.

Thanks a lot.

[Arunvijai_4]

Hi,

You can use # /opt/java1.4/bin/jar -cvf /home/pp/tmp/files.zip /home/pp/*

For unzipping, you can use

# /opt/java1.4/bin/jar -xvf

-Arun

[H.Merijn Brand (procura]

Depending on the type of file, selecting the correct zipping algorithm might have a big impact.

In most cases bzip2 works best

src # cd /home/pp
src # tar cf - . | bzip2 >/tmp/pp.tbz
src # scp /tmp/pp.tbz dst:/tmp/

dst # cd /home/pp
dst # bzip2 -d
If it is all stripped binaries, jpegs, or other files that do not compress very well, or if bzip2 is not available, use gzip

src # cd /home/pp
src # tar cf - . | gzip >/tmp/pp.tbz
src # scp /tmp/pp.tbz dst:/tmp/

dst # cd /home/pp
dst # gzip
Enjoy, Have FUN! H.Merijn

[RAC_1]

Do you have zip and gunzip, unzip installed? Else, you can just tar them into one tar ball and compress that tar ball.

tar -cvf some_name.tar /path_to_files/
compress some_name.tar

[Mustafa Gulercan]

hi;
You can use gzip which comes with HP-UX by default, Location : /usr/contrib/bin/gzip

Uncompressing, You can use gunzip or gzip -d
Location : /usr/contrib/bin/gunzip

[Mustafa Gulercan]

if you exactly wanna use zip and unzip first you must install both.

http://hpux.cs.utah.edu/hppd/hpux/Misc/zip-2.31/

http://hpux.cs.utah.edu/hppd/hpux/Misc/unzip-5.52/

[Arunvijai_4]

Hi again,

If you have Java SDK installed, you will have "jar" utility by default. No need to install any other softwares for zipping/unzipping.

-Arun

[panchpan]

I liked
tar -cvf some_name.tar /path_to_files/
compress some_name.tar

But, how to untar and uncompress some_name.tar ?

[H.Merijn Brand (procura]

# tar -cvf some_name.tar /path_to_files/
# compress some_name.tar

1. That will use twice the amout of diskspace you would have needed if you would have used my piping solution
2. compress is an ANCIENT (and bad) compression algorithm. It eats more CPU than it compresses your data
3. gzip is standard, why not use it?

compress's counterpart is uncompress

# uncompress some_name.tar
# tar xvf some_name.tar

Enjoy, Have FUN! H.Merijn

[Timothy P. Jackson]

Hi Panchalp,

I use gzip and it works very well. I transfer large files over ftp and have never had a problem.

If you decide to use gzip, you may want to down load the latest release. HP-UX 11i doesn't have the latest and so it has a problem handling large files. I can't remember it is 200M or 2Gig, but with later releases there is no problem.

Tim

[panchpan]

Hello.
I also appreciate gzip, but the problem is that - source dir IF i give gzip all the file names will get zipped and renamed to .gz. So I guess first i need to copy all 1000+ files to some tmp dir, gzip them there and then do ftp.

Thank you.

[H.Merijn Brand (procura]

No, they are not. The tar file is zipped, not the files in turn

# cd /home/dir
# tar cvf - . | gzip > /tmp/home_dir.tgz

tar collects the files into a single tar archive, but -f - causes tar to not use a file, but send the archive stream to STDOUT. That stream in turn is compressed by gzip and stored in a file.
Not only has that a speed advantage, but since you now use gzip on a stream, you won't hit gzip's 2 Gb limit that some older versions have.

Enjoy, Have FUN! H.Merijn

[f. halili · Accepted solution]

# cd /home/pp
# tar -cvf temp.tar tmp
# /usr/contrb/bin/gzip temp.tar
# /usr/contrib/bin/gzip temp.tar

This creates temp.tar.gz
You can then copy to any directory you want.

To uncompress:
# cd /directory_you_want
# /usr/contrib/bin/gunzip temp.tar.gz
# tar -xvf temp.tar
# ll tmp

CHEERS,
f.halili