Sponsored Content
Full Discussion: rsh fails with -n option
Operating Systems Solaris rsh fails with -n option Post 302338827 by amitranjansahu on Wednesday 29th of July 2009 03:49:24 AM
Old 07-29-2009
-n option is to redirect the output to dev/null

rsh -n -l username IPaddr ". ~/.profile >/dev/null 2>/dev/null; YOUR COMMAND HERE"

---------- Post updated at 01:19 PM ---------- Previous update was at 01:17 PM ----------

-n Redirect the input of rsh to /dev/null. You
sometimes need this option to avoid unfor-
tunate interactions between rsh and the
shell which invokes it. For example, if you
are running rsh and invoke a rsh in the
background without redirecting its input
away from the terminal, it blocks even if no
reads are posted by the remote command. The
-n option prevents this.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

help with rsh

I am trying to run a Perl script using rsh. I need to be able to capture the return code value, so the calling script can handle failures properly. I cannot modify the Perl script I need to run because we use it for all of our servers. Does anyone have a suggestion? (1 Reply)
Discussion started by: kscase
1 Replies

2. Shell Programming and Scripting

Help on rsh

Hi, i need to xecute rsh or rexec command in order to execute the script on multiple server. The problem i am facing is when i execute rsh command with login name and hostname it ask me password interactively can some body help me how i can pass password along with the command or how to... (1 Reply)
Discussion started by: deep022in
1 Replies

3. UNIX for Advanced & Expert Users

Rsh

Hi All, I want to execute a command from my Windows machine to Linux machine using RSH only d:> rsh <Linux machine add> -l <user_name> pwd>dir in linux machine users home directory in .rhosts file I entered the windows machine IP address and user name. In linux etc/hosts.equiv file I... (1 Reply)
Discussion started by: sarwan
1 Replies

4. Shell Programming and Scripting

option followed by : taking next option if argument missing with getopts

Hi all, I am parsing command line options using getopts. The problem is that mandatory argument options following ":" is taking next option as argument if it is not followed by any argument. Below is the script: while getopts :hd:t:s:l:p:f: opt do case "$opt" in -h|-\?)... (2 Replies)
Discussion started by: gurukottur
2 Replies

5. AIX

Rsh

How to configure rsh for different users in aix? (4 Replies)
Discussion started by: vjm
4 Replies

6. Solaris

rsh

How to enable rsh in solaris (7 Replies)
Discussion started by: durgaprasadr13
7 Replies

7. Shell Programming and Scripting

getopts fails to error on option w/o dash

I have a script with several options and during testing I found that the \? option does not handle options without dashes as I would expect. Then I run the script with any option that does not include a dash, it runs the script when I would expect \? to catch it and error. I've tried this with... (2 Replies)
Discussion started by: HexKnot
2 Replies

8. Shell Programming and Scripting

recently introduced to the newer option for find...does an older option exist?

To find all the files in your home directory that have been edited in some way since the last tar file, use this command: find . -newer backup.tar.gz Is anyone familiar with an older solution? looking to identify files older then 15mins across several directories. thanks, manny (2 Replies)
Discussion started by: mr_manny
2 Replies

9. Linux

RSH

Hi All, Whenever we are giving rsh localhost date , it give an error "Permission Denied". RHEL 6 is the version, and we're logging in as "root". in .rhosts file I have mentioned all the details, and enabled rsh,rsync,rexec,rlogin in /etc/xinetd.d/ file Please suggest. Reg, Muzaffar (7 Replies)
Discussion started by: muzaffar.k
7 Replies

10. Solaris

Unrecognized option: sparc-sun-Solaris2.10/bin/as: unrecognized option `-m32'

Hi, I installed some packages required by an app built with python. But when I try python setup.py install, I get the following error: /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.2.0/../../../../sparc-sun-solaris2.10/bin/as: unrecognized option `-m32' Could anyone tell me what's wrong... (4 Replies)
Discussion started by: Kimkun
4 Replies
rsh(1c) 																   rsh(1c)

Name
       rsh - remote shell

Syntax
       rsh host [-l username] [-n] command
       host [-l username] [-n] command

Description
       The  command  connects to the specified host, and executes the specified command.  The command copies its standard input to the remote com-
       mand, the standard output of the remote command to its standard output, and the standard error of the remote command to its standard error.
       Interrupt, quit and terminate signals are propagated to the remote command.  The command normally terminates when the remote command does.

       The  remote  username  used is the same as your local username, unless you specify a different remote name with the -l option.  This remote
       name must be equivalent, in the sense of to the originating account.  No provision is made for specifying a password with a command.

       If you omit command, then instead of executing a single command, you are logged in on the remote host using

       Shell metacharacters which are not quoted are interpreted on local machine, while quoted  metacharacters  are  interpreted  on  the  remote
       machine.  Thus the command

	  rsh otherhost cat remotefile >> localfile

       appends the remote file remotefile to the localfile localfile, while

	  rsh otherhost cat remotefile ">>" otherremotefile

       appends remotefile to otherremotefile.

       Host  names are given in the file Each host has one standard name (the first name given in the file), which is rather long and unambiguous,
       and optionally one or more nicknames.  The host names for local machines are also commands in the directory If you put  this  directory	in
       your search path then the can be omitted.

Options
       -l username	   Logs you in as the specified user, not as your user login name.

       -n		   Redirects all command input to

Restrictions
       The  command  is  confused by output generated by commands in a .cshrc file on the remote host.	In particular, `where are you?' and `stty:
       Can't assign requested address' are messages which can result if output is generated by the startup file.

       If you are using and put a in the background without redirecting its input away from the terminal, it blocks even if no reads are posted by
       the remote command.  If no input is desired you should redirect the input of to using the -n option.

       You cannot run an interactive command like Use

       Stop signals stop the local process only.

Files
       /etc/hosts
       /usr/hosts/*

See Also
       rlogin(1c)

																	   rsh(1c)
All times are GMT -4. The time now is 12:08 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy