Lei Day very thin and even more fragile. This specific lei is often called the "Royal lei" because in the past it was worn by high chieftains. Lei Day is a celebration of Hawaiian culture, or the aloha spirit. People commonly celebrate by giving gifts of leis to one another. Schools also put on plays and elect a Lei Day court of Kings and Queens to represent the different islands. Each island has its own symbol that is composed of a color and a flower. Hawaii (the big island) is red, Maui is pink, Oahu is yellow, Molokai is green, Lanai is
Comparison of command shells user for sensitive information such as passwords, private digital keys, PIN codes or other confidential information. Sensitive input should not be echoed back to the screen/input device where it could be gleaned by unauthorized persons. Plaintext memory representation of sensitive information should also be avoided as it could allow the information to be compromised, e.g., through swap files, core dumps etc. The shells bash, zsh and PowerShell offer this as a specific feature. Shells which do not offer this as a specific feature may still be able to turn off echoing through some other means. Shells executing on a Unix/Linux