scp and gunzip

[Gilbert Standen_1]

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.

[Patrick Wallek]

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

[Steven E. Protter · Accepted solution]

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

[Mauro Gatti]

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

[Laurent Menase]

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

or
ssh "cd ;gunzip -c >filename"

[Kari Pannila]

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.

[Kari Pannila]

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

[Gilbert Standen_1]

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 !!