Here’s one for all you hardcore terminal fans.. TouchTerm SSH gives you simple, straight forward SSH access to your devicesservers. Unlike may other SSH iPhone apps, touch term gives you a single input and output screen. Making those more complex tasks even easier to operate remotely.
TouchTerm also enables the secure saving of connection passwords, using an overall ‘master password’, which takes the fear away from loosing your beloved device. For those of you who have even stricter connection standards, it also supports RSA/DSA Key-based authentication!
TouchTerm supports both WiFi and 3G connections to your SSH servers, and if you purchase the ‘Pro’ version, you can also save and execute ‘macros’ to speed up those mundane tasks.
There are many SSH terminal apps on the App Store, some even cheaper then TouchTerm, however – in my opinion I don’t think any of them are worth it apart from TouchTerm. I love the interface, and the choice of ‘semi-transparent’ keyboard.
As only a light SSH user, I have not gone for the ‘Pro’ version. Which is available for £5.49, whereas the light version is £2.49. As you can see from the reviews in the App Store TouchTerm has many happy users.
For a list of commands you can use with TouchTerm (and OS X’s terminal window) check out this
link.

If you are wondering what SSH is, it stands for Secure Shell, and it’s basically a network protocol enabling the secure passage of commands from device to device over the internetnetwork etc. SSH was ‘invented’ in 1995 by a researcher at Helsinki University of Technology called Tatu Yjonen.
You can read more about SSH over at Wikipedia.