02-13-2014
It's just a somewhat oddly named variable.
Even more fun is when someone peppers an awk program with a variable Z or something, and never actually sets its value -- it's just a one-letter way to get a blank string, as opposed to "" !
This User Gave Thanks to Corona688 For This Post:
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LEARN ABOUT REDHAT
tzselect
TZSELECT(8) System Manager's Manual TZSELECT(8)
NAME
tzselect - select a time zone
SYNOPSIS
tzselect
DESCRIPTION
The tzselect program asks the user for information about the current location, and outputs the resulting time zone description to standard
output. The output is suitable as a value for the TZ environment variable.
All interaction with the user is done via standard input and standard error.
ENVIRONMENT VARIABLES
AWK Name of a Posix-compliant awk program (default: awk).
TZDIR Name of the directory containing time zone data files (default: /usr/local/etc/zoneinfo).
FILES
TZDIR/iso3166.tab
Table of ISO 3166 2-letter country codes and country names.
TZDIR/zone.tab
Table of country codes, latitude and longitude, TZ values, and descriptive comments.
TZDIR/TZ
Time zone data file for time zone TZ.
EXIT STATUS
The exit status is zero if a time zone was successfully obtained from the user, nonzero otherwise.
SEE ALSO
newctime(3), tzfile(5), zdump(8), zic(8)
TZSELECT(8)