10-11-2018
echo to etc file
Hi there.
I would like to add a mount line to a cluster of mini servers, quite a few of them. I need to do this remotely with pssh.
The problem being ssh sudo echo snd ssh sudo fprint both produce permission denied. I know sudo echo works locally, so it's quite rightly prevented over ssh. This isn't a password problem as I have copied shared keys.
So, the question is, how can I do this quite wrongly using ssh? (!)
I can only use pssh, I could use a script if I can take an ip list from file, or I could use python. I cannot add any software to the nodes. Or at least I really don't want to.
Many thanks.
------ Post updated at 07:44 PM ------
Just thought I'd try pssh <ops> "sudo chmod 0777 /etc/fstab" worked fine, then I could echo the mount line.
So, there you go!
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MTAIL(1) User Commands MTAIL(1)
NAME
mtail - tail variant designed for web developers monitoring logfiles
SYNOPSIS
mtail [options] <file>...
DESCRIPTION
MonkeyTail allows a user to tail multiple files on both local and remote hosts and clearly marks inactivity by putting 5 newlines in the
output whenever a pause in output over 3 seconds is detected.
MonkeyTail is implemented a fairly simple wrapper script around standard tail, ssh, and sudo.
OPTIONS
-q Quiet mode
--quiet
" "
-n Output the last N lines of each file before tailing (defaults to 0)
<file>...
Files to tail.
These can specified in the following ways:
@<groupname>
- expands the group (from .mtailrc) to a list of
files to tail
<filename>
- tails a local file.
+<filename> - attempts to sudo and tail a local file (will
prompt for pwd if required).
<remotehost>:<filename>
- attempts to invoke tail via ssh on a remote
host.
+<remotehost>:<filename> - attempts to invoke sudo tail via ssh on a
remote host (will prompt for pwd if required).
SEE ALSO
mtailrc(5), tail(1)
AUTHOR
Martyn Smith <martyn@dollyfish.net.nz>
mtail May 2008 MTAIL(1)