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tcgetattr: Inappropriate ioctl for device after ssh command


 
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# 1  
Old 06-03-2011
tcgetattr: Inappropriate ioctl for device after ssh command

Hello everyone


I am finishing a script allowing me to purge logs on multiple servers, i have one last pb with the ssh command.........it is throwing me the following error :

tcgetattr: Inappropriate ioctl for device (full screen in attached file 1, full script in attached file 2)

It seems like i am unable to process command through SSH....;

conf: redHat 5.5 64 bit and GNU bash 3.1.17 on all servers, .sh script

thanks for you replies
# 2  
Old 06-03-2011
If you want the commands to run remotely, they must go to the ssh commmand line or the ssh stdin.

Often, there is no point in a full ssh login, no need for a remote tty, so I:
Code:
( . . . . )|ssh user@host ksh

and write a ksh script to stdin.
# 3  
Old 06-03-2011
Hi DGpicket

Thanks for your reply:

Quote:
If you want the commands to run remotely, they must go to the ssh commmand line or the ssh stdin.
If i put my remote server subroutine in a test.sh with 1 parameter and did this :

ssh jpassema@SERVER < test.sh $LE_PATH ?
# 4  
Old 06-03-2011
Not quite! < just sends the file down to run on whatever shell logs in, the argument does not make the trip. You can copy the script down there and then call it with an argument, or merge the argument into the script and pipe it all down to ssh. I recommend specifying the shell command as the recipient, so there is no full login. "ssh host" is a login, but "ssh host bash" is a pipe to a remote bash command running on host with no controlling terminal, much like a cron there. You need to build your own environment, as you can see if you run "ssh host bash -c set".
# 5  
Old 06-03-2011
Quote:
Originally Posted by jimmy75_13
Hi DGpicket

Thanks for your reply:



If i put my remote server subroutine in a test.sh with 1 parameter and did this :

ssh jpassema@SERVER < test.sh $LE_PATH ?
Not quite. How about:

Code:
ssh jpassema@SERVER exec /bin/sh -b "$LE_PATH" < local-script.sh

By the by, it's usually not a good idea to name things test. UNIX already has a test utility that someone else might confuse it with.
# 6  
Old 06-03-2011
I do not think you need exec or full path for sh, and exec just saves a fork. What does -b do, put that value on the command line (hope it's a well behaved value)?
# 7  
Old 06-03-2011
Quote:
Originally Posted by DGPickett
I do not think you need exec or full path for sh, and exec just saves a fork.
A fork can be a thing worth saving, but yes, it's not strictly necessary.

The full path for a shell is just a habit of mine.
Quote:
What does -b do
That should have been -s, pardon me. Don't know how I managed the mixup when I was doublechecking in man pages as I typed!

-s forces it to read from standard input, which makes it treat parameters as script parameters $1 $2 etc instead of file names. It's a very portable option which seems to have been inherited from ancient bourne into bash, dash, ash, zsh, csh, ksh, and beyond.
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