shell scripting

shell_scripting

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printenv = print environment variables or what php calls global variables

TERM=xterm
SHELL=/bin/bash
USER=user
DEFAULTS_PATH=/usr/share/gconf/xubuntu.default.path
XDG_CONFIG_DIRS=/etc/xdg/xdg-xubuntu:/etc/xdg:/etc/xdg
PATH=/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
DESKTOP_SESSION=xubuntu
PWD=/home/user
LANG=en_US.UTF-8
MANDATORY_PATH=/usr/share/gconf/xubuntu.mandatory.path
GDMSESSION=xubuntu
HOME=/home/user
LANGUAGE=en_US:en
LOGNAME=user

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http://www.thegeekstuff.com/2010/06/bash-array-tutorial/

Print the Whole Bash Array

There are different ways to print the whole elements of the array. If the index number is @ or *, all members of an array are referenced. You can traverse through the array elements and print it, using looping statements in bash.