Thread: Advance User Setting Shell help

as researching on how create kiosk ubuntu setting came upon suggestion create user '/usr/bin/screen' shell option.
hope forgive me noob question mean?
saw when checked advance settings advance tab there couple of possible options there, mean , how affect user profile i'm creating?
tried google , if understanding correct, these shells suppose programmable , scripting language linux i'm confused on effect has on user profile i'm creating?
1 thing notice though '/usr/bin/screen' option, user account refused of applications > accessories > terminal option.
when googled each 1 of options i'm getting more confused relevance of user profile.

if can provide me short descriptions , explanations relevance on user profile, or can point me link or page site should reading, i'd appreciate it.

/bin/bash
/usr/bin/screen
/bin/sh
/bin/dash
/bin/rbash
/bin/false

thank very much.

the screen program allows having multiple consoles open under 1 login. can start process in 1 , switch , else, switch easily. there other handy features too. can read more man screen (assuming have installed it).

using shell (though i'm kindof adlibbing here don't usually) allows login session attached other users. when need thru process - attach screen , commands while watch. of course, having setup security issue watch session , things may not aware of.

having shell set /bin/false indicates user cannot login shell, ie. no shell allowed. useful users setup internal stuff running cron job or file owner 1 should not able login remotely, reduces potential abuse.

other ones list various alternative shells similar in ways regular bash shell. oh , "shell" means program interpret user commands when login , execute them or call program needed. shell can made limit abilities of user can do. example, having sftp shell ssh allows doing sftp (secure file transfer) commands, , not running programs.

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