Very Computer

I have tried 'tar -cFpf /source | compress >
/target/dir/filename.tar', but I can't seem to get it to work.  It
creates a 0-size (zero) file (ex: foo.tar.Z).

Anyone have any ideas?

Not that it should make any difference but: AIX 4.3.2 running on an SP
silver node.

Anthony

I am running HPUX 10.20 but I am going to guess that as far as
tar/compress goes AIX isn't that much different.

Try the following command:

tar -cFpf - /source | compress - > /target/dir/filename.tar.Z

The command that you were issuing wasn't informing tar to send it's
output to stdout and wasn't telling compress to accept input from stdin.

Hope it helps,
Ted

you might try to download a copy of GNU's tar (gtar) and GNU's zip (gzip) from the web.
gtar supports the "z" option to use gzip to compress the files. The commandline looks
like this:
gtar -czf target.tgz savefile1 savefile2 ...
gzip itself is compressing much better than compress does.

Regards Rainer

...

Quote:> > I have tried 'tar -cFpf /source | compress >
> > /target/dir/filename.tar', but I can't seem to get it to work.  It
> > creates a 0-size (zero) file (ex: foo.tar.Z).
> > Anyone have any ideas?
> > Not that it should make any difference but: AIX 4.3.2 running on an
> > SP silver node.

Quote:> Try the following command:
> tar -cFpf - /source | compress - > /target/dir/filename.tar.Z
> The command that you were issuing wasn't informing tar to send it's
> output to stdout and wasn't telling compress to accept input from
> stdin.

Correct, but the command you are suggesting doesn't inform compress to
send its output to stdout for redirection to the file. compress accepts
stdin from the pipe, but requires a -c option to write to stdout:

tar -cFpf - /source | compress -c > /target/dir/filename.tar.Z

-   tony

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