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Full Discussion: ssh, bash, and /dev/stderr: no such device
Top Forums Shell Programming and Scripting ssh, bash, and /dev/stderr: no such device Post 302428733 by Corona688 on Thursday 10th of June 2010 05:33:19 PM
Old 06-10-2010
Quote:
Originally Posted by brsett
I get the following confusing error.

bash: line 1: /dev/stderr: No such device or address

Does anyone know why and how to fix it?
It means what it says: no such file.
Code:
$ ls -l /dev/stderr
lrwxrwxrwx 1 root root 4 Jun  9 10:10 /dev/stderr -> fd/2
$ ls -l /dev/fd
lrwxrwxrwx 1 root root 13 Jun  9 10:10 /dev/fd -> /proc/self/fd
$ ls -l /proc/self/fd/2
lrwx------ 1 tyler users 64 Jun 10 15:30 /proc/self/fd/2 -> /dev/pts/0
$

It's a real file, and a symlink at that, ultimately pointing to /proc/self/fd/2. If /proc/self/fd/2 doesn't exist i.e. isn't open, naturally it can't print to it. This happens because you're feeding it a script on stdin, so it figures it doesn't have to bother giving you a full set of stdin/stdout/stderr etc. Try ssh -t, it may give you a normal stderr.
Last edited by Corona688; 06-10-2010 at 06:39 PM..
 

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LEARN ABOUT SUSE

showconsole

SHOWCONSOLE(8)						       The SuSE boot concept						    SHOWCONSOLE(8)

NAME

       Showconsole - determines the underlying tty of stdin
       Setconsole - sets the underlying tty of /dev/console

SYNOPSIS

       showconsole [-n]

       setconsole /dev/tty<xy> < /dev/console

DESCRIPTION

       showconsole  determines the underlying character device of the current stdin.  This can be used on /dev/console as current character device
       to get the real character device back.

       setconsole sets the underlying tty of the system console /dev/console.  This requires that the standard input is identical  with  /dev/con-
       sole and exactly one argument, a valid character device is given.

OPTIONS

       -n     Return  the  major and minor device numbers instead of the device file name.  This can be used to asked the kernel for the major and
	      minor device numbers of a not existing device file in /dev.

BUGS

       showconsole needs a mounted /proc file system and tries to set the controlling tty to stdin if no controlling tty is found.  After  reading
       /proc the status of the controlling tty is restored to avoid problems with getty processes.

FILES

       /proc/<pid of showconsole>/stat
	      the stat file of the showconsole process.

       /dev/console
	      the system console.

SEE ALSO

       blogd(8), console(4), tty(4), proc(5).

COPYRIGHT

       2000 Werner Fink, 2000 SuSE GmbH Nuernberg, Germany.

AUTHOR

       Werner Fink <werner@suse.de>

3rd Berkeley Distribution					   Nov 10, 2000 						    SHOWCONSOLE(8)
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