So replacing the command ctrl+alt+T for linux in chromeOS brings up a command line interface known as crosh in Chromebooks. This commandline has little to do with input in which modifies the system. Most of it is recieving output and they replaced nearly all productive commands within the help menu and subjected to "help_advance" in which litterally just gives you commands you either can't use, or just provides output. The only command I found useful in both menu's is ping, tracepath, & traceroute, as it actually does what it is suppose to do but requires all paramaters to be filled with no defaults in place. There is no file navigation or making within this terminal.
Along with that they have been removing commands and functionality from this terminal with updates. If you were to look up Crosh on older sites you'd fine top X lists for useful commands, most of these have been removed, to remove user control over their systems.
Leaving the terminal in chromeOS damn near useless.