q-shell is quick shell for remote login into Unix system, it use blowfish crypt algorithm to protect transport data from client to server, you can get two program: 'qsh' for client, and 'qshd' for server, those program can rename by any name with you prefer.

Just enter 'make' and it will automation to compile, but, you must input the server key.

1. server:

Just run qshd on server:

	 $ ./qshd

But, you would like to run after change it to other name, such as:

	 $ mv qshd smbd
	 $ export PATH=.:$PATH
	 $ smbd

2. client:

Set some environment variable, then run qsh:

	$ export _IP=127.0.0.1
	$ export _PORT=2800
	$ ./qsh shell

Now you already login into server $_P .

q-shell include more function to manage system:

1. put/get files:

    $ ./qsh get /path/to/server/file .
    $ ./qsh put /path/to/local/file  /path/to/server/file
   

2. run a command on server:

    $ ./qsh exec 'ls -l /bin'
   

3. update server program:

    $ ./qsh update /path/to/local/qshd
   

This function will update remote qshd, and run again.

4. automation to run command on many server:

    $ for i in {10..20} ; do \
          export _IP=192.168.0.$i
          export _PORT=2800
          export _P=key   # set key
          ./qsh exec 'ls -l /bin'
      done
   

Note: qsh use $_P to fetch server key, so you should erase all history data after to use $_P.

Client and server must have the same main version serial, otherwise, the client cannot to connect the server. the main version serial like, both is 1.x, or 2.x, or 3.x, etc.

For example, if the client version is 1.1, and server is 1.5, so client can connect to the server, but if server version is 2.1, in that way the client cannot connect to server.