Your problem is that the right side of the pipe is executed on the calling host.
You need to force it to the remote host, by quoting:
or simpler
Please omit the backticks! They will run the output as commands. If the output would be "reboot" ... guess what happens!
Further, you can combine two adjacent ssh statements in one ssh statement:
The calling host sees one multi-line "string".
Within the "" quotes it replaces each $VAR by its value.
$ROLE should be quoted on the remote host; you need either \"$ROLE\" or '$ROLE'. The '' ticks do not replace $ROLE by its value, but this is meaningless on the remote host, because it is already replaced by the calling host. And the calling host treats a ' tick as simple characters if it appears within a "string".
There are many more possible optimizations; DGPicket pointed out some...
Last edited by MadeInGermany; 02-18-2013 at 06:23 PM..
This User Gave Thanks to MadeInGermany For This Post:
I am trying to think of a way to create user ids on multiple Linux systems in one fell swoop without logging onto each system indivually. Is there a way to do this with ssh commands? I don't want to use NIS/LDAP solution just a simple shell script utilitarian methodoloy would suffice. Also, I am... (1 Reply)
I've had Linux when I was young, on one of our first computers and learned it pretty quickly... However, I've been working on Windows for about 7 years now and just made the switch back to Linux, Mandrake 9.1. So I have some problem with creating new user accounts. I could create one, but once I... (3 Replies)
I am trying get "df -k" output from multiple hosts along with their hostnames via ssh, my script is appending the "df -k" output from all the nodes to a single file but not getting the hostnames for those nodes, just wondering how to pass more than one command via ssh or may be someone could come... (6 Replies)
I have a directory full of zip files.
How would I write a bash script to enumerate all the zip files, remove the ".zip" from the file name, create a directory by that name and unzip each zip file into its corresponding directory?
Thanks!
Siegfried (3 Replies)
Hi,
Can someone help me with creating a bash shell script.
I need to create a script that gets a positive number n as an argument.
The script must create n directories in the current directory with names like map_1, map_2 etcetera. Each directory must be contained within its predecessor. So... (7 Replies)
Hi
I need to create a user who can have access on only one folder.
for example I created a user "test" . he should have access only on folder
/testfolder.
The problem is that the user will mostly use FileZilla to ftp his files in the testfolder.
In the fileZilla , i want him to be... (21 Replies)
I have a script on about 15 hosts that I need to run for each host whenever I want (not crontab). Problem is, this script takes 5-10 mins to run for each host. Is there a way I can run the script in parallel for all the hosts instead of 1 at a time? Also, I'm remotely running the script on the... (3 Replies)
I have a script to detect if a host is pingable or not. The problem is that I would like it to put the nonpingable hosts in one file and the pingable hosts in another. I have come up with this so far:
for ip in `cat /tmp/testlist2`; do ping -c 3 $ip >/dev/null && echo "$ip is up" || echo "$ip... (5 Replies)
Hi everyone!
Some time ago, I had to check connectivity with a big list of hosts, using different formats (protocol://server:port/path/, server:port, ....).
I developed a script that checks the connectivity using different commands (ping, telnet, nc, curl).
It worked for me so I'm sharing it... (9 Replies)
Discussion started by: Fr3dY
9 Replies
LEARN ABOUT SUSE
ssh-copy-id
SSH-COPY-ID(1) General Commands Manual SSH-COPY-ID(1)NAME
ssh-copy-id - install your public key in a remote machine's authorized_keys
SYNOPSIS
ssh-copy-id [-i [identity_file]] [user@]machine
DESCRIPTION
ssh-copy-id is a script that uses ssh to log into a remote machine (presumably using a login password, so password authentication should be
enabled, unless you've done some clever use of multiple identities)
It also changes the permissions of the remote user's home, ~/.ssh, and ~/.ssh/authorized_keys to remove group writability (which would oth-
erwise prevent you from logging in, if the remote sshd has StrictModes set in its configuration).
If the -i option is given then the identity file (defaults to ~/.ssh/id_rsa.pub) is used, regardless of whether there are any keys in your
ssh-agent. Otherwise, if this:
ssh-add -L
provides any output, it uses that in preference to the identity file.
If the -i option is used, or the ssh-add produced no output, then it uses the contents of the identity file. Once it has one or more fin-
gerprints (by whatever means) it uses ssh to append them to ~/.ssh/authorized_keys on the remote machine (creating the file, and directory,
if necessary)
SEE ALSO ssh(1), ssh-agent(1), sshd(8)OpenSSH 14 November 1999 SSH-COPY-ID(1)