parallel-ssh使用的hosts.txt在哪里

Question

this might sound silly but I'm really stuck here...

I want parallel-ssh to preform operations on multiple hosts and I know I have to put their IPs in file hosts.txt, but where is this fabled hosts.txt file? Or if I have to create it, where? Because I keep getting this:

IOError: [Errno 2] No such file or directory: 'hosts.txt'

Answer 1

You have to create it. one host per line.

create a file called hosts.txt and in the contents have:

host1.mydomain.com  
host2.mydomain.com

then you pass that file in as an option pssh -h hosts.txt ...

That file can have any name really, so long as it's a list of hostnames. You could save it as myhosts.txt , as an example.

pssh -h myhosts.txt ...

You can create this file where ever you like. If you are on a windows machine you can create it in c:\\temp or on a *nix box in /tmp/ or where ever.

then you can go:

pssh -hc:\\temp\\hosts.txt or...
pssh -h /tmp/hosts.txt or...
pssh -hc:\\temp\\myhosts.txt

Answer 2

您可以使用-h选项或PSSH_HOSTS环境变量来指定它：

 pssh [OPTIONS] -h hosts.txt prog [arg0] ...