1 Being called ugly is different from being called not well taken care of or unkempt. 2  Take responsibility for your image, for things that you can change. 3  Always consider the source. Being called ugly is different from being called not well taken care of or unkempt. 2  Take responsibility for your image, for things that you can change. 3  Always consider the source.
Ls. 1. Command used in Linux, Unix, and their respected variants that lists the files and directories in the current directory. 1  See the Linux and Unix ls command page for additional information about this command.
(Redirected from Passenger Service System) A passenger service system (PSS) is a series of critical systems used by airlines. The PSS usually comprises an airline reservations system, an airline inventory system and a departure control system (DCS). Generally the PSS is made up of modules that are used to manage different parts of the airlineâs business.