sexy-ssh

Sexy ssh makes batch ssh tasks sexy!

Install

Build from source

git clone git@github.com:qjpcpu/sexy-ssh.git
cd sexy-ssh
export GOPATH=`pwd`
go install sesh

The executable file bin/sesh is all you need.

Download binary file

go get -u github.com/qjpcpu/sesh

Usage

hosts

Use with host file:

sesh -f host-file -u user -p password 'echo hello'

The host-file’s format is simple, one host per line, like:

www.example-host00.com
www.example-host01.com

Output is:

If the hosts can be counted, you can use -h to specify remote hosts, seperated by ,:

sesh -h www.host1.com,www.host2.com -u user -p password 'echo hello'

Sesh also can get hosts from Stdin:

echo host1,host2 | sesh -u user -p password 'echo hello'
cat host-file | sesh -u user -p password 'echo hello'

Authorization

Use -p to specify password, but it’s better to use rsa authorization with -i:

sesh -f host-file -u user -i ~/.ssh/id_rsa 'echo hello'
# Or, just use nothing for authorization, sesh use ~/.ssh/id_rsa as default
sesh -f host-file -u user 'echo hello'

And, if the user of remote host is same as current user, we can just drop -u flag:

sesh -f host-file 'echo hello'

build key auth quickly: sesh -f host-file -u user -c @auth.cmd

Timeout

The default connection timeout is 5 seconds, it can be changed by --timeout:

sesh -f host-file  --timeout 1 'echo hello'

Parallel

Sesh would execute job for each host serially by default, swith -r on for parallel execution:

sesh -f host-file -r 'echo hello'

Sesh would execute all task by parallel,if you want control the parallel degree, you could use --parallel-degree.

Output is:

Forexample, if you want execute every 2 hosts by paraallel:

sesh -f host-file -r --parallel-degree 2 'echo hello'

Check for sure

If you want have a check after the first host’s job done, you can use --check, when first job done, you would auto logon the first host, if everything is fine, press Ctrl+Dto return and continue.

sesh -f host-file --check 'touch new-file'

Execute script

If you want execute many commands on remote host, you would find it’s hard to use ssh command to accomplish that, so you can put these comands into a file, for example keygen.cmd:

if [ ! -e "~/.ssh/id_rsa" ];then
    ssh-keygen -t rsa -N "" -f ~/.ssh/id_rsa
fi

Use -c to specity command file:

sesh -f host-list -c keygen.cmd

If the script needs arguments, the --exec might help.
Note: the first symbol {} represents the script file name.

sesh -f host-list  -c myscript.cmd  --exec 'sh {} hello'

the content of myscript.cmd is echo "say $1", so the output would be say hello.

If the script starts with shibang #!, forexample, a ruby file test.rb is:

#!/usr/bin/ruby
puts "say "+ARGV.to_s

You can run sesh like this:

sesh -f host-list -c test.rb --exec '{} hello'

Command template

You can embedded parameter in command or command file with {{ name }}, then invoke sesh with -d, for example, there is a command file enter-today-dir.cmd:

cd ~/{{ date }}/logs && pwd

then, we can use sesh like this:

sesh -f hosts -d date=$(date +%Y%m%d) -c enter-today-dir.cmd

You can also use argument parse for inline commands:

sesh -f hosts -d who=jason 'echo {{ who }} is sexy'

Or you can invoke script(the first line must start with #!) with arguments in normal way:

This is a ruby script x.rb:

#!/usr/bin/ruby
puts ARGV

Now the sesh would be:

sesh -f hosts -c x.rb --exec "{} hello"

Remote cp(scp)

Sesh also support scp

sesh -f hosts send -s srcfile -d /remote/directory

Help

sesh --help