So, a player who can jump 4 feet vertically will have a hang time of around a second, with half a second spent in the high part of the jump. Physics Of Basketball â Backspin. Backspin is used by players to improve their chances of getting the basketball into the net.
From Linux Shell Scripting Tutorial - A Beginner's handbook. The /etc/shells is a Linux / UNIX text file which contains the full pathnames of valid login shells. This file is used by various commands including chsh command.
A Unix shell is a command-line interpreter or shell that provides a traditional user interface for the Unix operating system and for Unix-like systems.he Unix shell is both an interactive command language as well as a scripting programming language, and is used by the operating system as the facility to control (shell script) the execution of the system.