You can work putty and command on your mobile.
Here is easy tutorial.
Follow the steps.
Step – 1
Step – 2
Now, Open the app on your Mobile.
Step – 3
Now, Click on Menu from Right side top.
Step – 4
Now, Click on SSH Settings.
Step – 5
Now, Insert your server ip address and insert 22 port and Click on OK.
Step – 6
Your server information is saved to this app. Now Click on Menu from Right Side top and Click On Connect .
Step – 7
Now, it will connect your server then you need login with root and password.
Step – 8
Now, Type: root and click on send.
Step – 9
Now, Type: Password and Click on Send .
Step – 10
Now, If everything is okay then it will connect your server on Mobile SSH.
Step – 11
Now, You can use linux commands to operate your server.
To use command. Type: commands and Click on Send Button.