Dan, Olof, all,
> I need to pipe the tar command into ssh (or whatever)
> so the file is created on the remote server.
>
> someone said to use:
>
> tar cvf - | ssh remotehost | dd of=/home/dir/file | tar xvf -
>
> but somehow I don't think that works either.
No, because your tar syntax is wrong, your piping is wrong, and your
I/O redirection is wrong. Wow. That's a lot of wrong...
View this explanation of "why?" with a fixed width font:
> tar cvf - | ssh remotehost | dd of=/home/dir/file | tar xvf -
| | | |
| | | |_ You're piping the stdout
| | | of dd, which is nothing,
| | | to tar.
| | |
| | |_ If you didn't have the previous pipe here,
| | you would be writing the tar output to a file
| | on the remote host. Now you are writing the
| | stdout of ssh (= nothing) to a local file.
| |
| |_ You're piping the stdout of ssh, not the tar
| output.
|
|_ You need to specify a file or directory that you want to put in. Otherwise
GNU tar will fail ("tar: Cowardly refusing to create an empty archive
Try `tar --help' for more information.") as will the "standard" one (on
HP-UX, I get "Attempt to create archive of no files. Nothing dumped.")
This works:
tar cvf - [ files or directories ] | ssh remotehost tar xfv -
--
Atro Tossavainen (Mr.) / The Institute of Biotechnology at
Systems Analyst, Techno-Amish & / the University of Helsinki, Finland,
+358-9-19158939 UNIX Dinosaur / employs me, but my opinions are my own.
< URL : http : / / www . iki . fi / atro . tossavainen / >
