Re: OT: Sed/Perl script tp comment out specifc line

[Matthew Melvin <matthewm webcentral com au>]

On Fri, 31 Aug 2001 at 3:27pm (-0700), Chuck wrote:

>
> I have about 200 remote servers that run a custom application each with
> a tailored config file (ie no two are the same). I need to comment out 2
> lines that are the same in every file for all 200 servers. What is the
> easiest way to do this? I currently use rsh to manage these servers so I
> wanted to create a script, either in perl or sed, that can modify the
> file, distribute this script to each host and execute it there.
>
> How would you guys go about this?
>
> Thanks,
> CC

Hmmm... had to do this yesterday to add a new entry to the hosts.allow file
of a bunch of servers.  Should be able to do it all on the command line
rather than distributing a script.  Something like...

# cat hosts.list | while read i; do
> echo $i
> rsh $i "perl -p -i~bak -e 's/^(first line|second line)/#\$1/' cfgfile"
> done
host1
host2
[...]
host200
#

... shoudl work.  Although i've only done this with ssh rather than rsh but
i'm 99% sure they're going to behave the same.

M.

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