topic Re: scp and gunzip in Operating System - HP-UX

scp and gunzip

Gilbert Standen_1 — Thu, 04 Mar 2004 20:49:59 GMT

Can a file be gunzip'd while it's being scp'd to another box ? The file is gzip'd on the source box and I want it to land unzip'd on the target box.

Re: scp and gunzip

Patrick Wallek — Thu, 04 Mar 2004 21:07:27 GMT

I haven't tried this so I don't know if it'll work, but it might:

# gunzip < file.gz > - | scp - remotehost:/remote/dir/file

Re: scp and gunzip

Steven E. Protter — Fri, 05 Mar 2004 00:28:00 GMT

I tested Patrick's idea.

Didn't work.

scp requires a source and a destination, so the concept can be modified to work.

gunzip filename.gz ; scp filename remotehostname://dir

That is teseted and works. Not exactly what you want.

SEP

Re: scp and gunzip

Mauro Gatti — Fri, 05 Mar 2004 05:35:42 GMT

I don't know if this is wath you want but You can try:

cd ; tar cvf - |compress|ssh "cd ;uncompress|tar xvf -"

Compress and uncompress seem to work fine with stadard input and output (like is written in man).

Rgds

Mauro

Re: scp and gunzip

Laurent Menase — Fri, 05 Mar 2004 05:47:55 GMT

gzip -c |ssh "cd ;gunzip -c >filename"

or
ssh "cd ;gunzip -c >filename"

Re: scp and gunzip

Kari Pannila — Mon, 08 Mar 2004 02:44:50 GMT

You could instead of gunzip use the -C option of scp, if it works in your environment, you can forget gunzip.

scp options:

-C Compression enable. Passes the -C flag to ssh(1) to enable compression.

Re: scp and gunzip

Kari Pannila — Mon, 08 Mar 2004 02:47:22 GMT

You must first of course unzip the file...
then scp -C...

Re: scp and gunzip

Gilbert Standen_1 — Thu, 11 Mar 2004 02:22:43 GMT

Laurent, your code works very well for my application so I have plugged that in where needed. It is very much appreciated. All the very excellent respones very much appreciated !!