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Diffstat (limited to 'tzselect.8')
| -rw-r--r-- | tzselect.8 | 102 |
1 files changed, 92 insertions, 10 deletions
diff --git a/tzselect.8 b/tzselect.8 index 515b0ed51bfd..1a5ce110f47d 100644 --- a/tzselect.8 +++ b/tzselect.8 @@ -1,43 +1,125 @@ .TH TZSELECT 8 .SH NAME -tzselect \- select a time zone +tzselect \- select a timezone .SH SYNOPSIS +.ie \n(.g .ds - \f(CW-\fP +.el .ds - \- +.ds d " degrees +.ds m " minutes +.ds s " seconds +.ds _ " \& +.if t \{\ +. if \n(.g .if c \(de .if c \(fm .if c \(sd \{\ +. ds d \(de +. ds m \(fm +. ds s \(sd +. ds _ \| +. \} +.\} .B tzselect +[ +.B \*-c +.I coord +] [ +.B \*-n +.I limit +] [ +.B \*-\*-help +] [ +.B \*-\*-version +] .SH DESCRIPTION The .B tzselect program asks the user for information about the current location, -and outputs the resulting time zone description to standard output. +and outputs the resulting timezone to standard output. The output is suitable as a value for the TZ environment variable. .PP All interaction with the user is done via standard input and standard error. +.SH OPTIONS +.TP +.BI "\*-c " coord +Instead of asking for continent and then country and then city, +ask for selection from time zones whose largest cities +are closest to the location with geographical coordinates +.I coord. +Use ISO 6709 notation for +.I coord, +that is, a latitude immediately followed by a longitude. The latitude +and longitude should be signed integers followed by an optional +decimal point and fraction: positive numbers represent north and east, +negative south and west. Latitudes with two and longitudes with three +integer digits are treated as degrees; latitudes with four or six and +longitudes with five or seven integer digits are treated as +.I "DDMM, DDDMM, DDMMSS," +or +.I DDDMMSS +representing +.I DD +or +.I DDD +degrees, +.I MM +minutes, +and zero or +.I SS +seconds, with any trailing fractions represent fractional minutes or +(if +.I SS +is present) seconds. The decimal point is that of the current locale. +For example, in the (default) C locale, +.B "\*-c\ +40.689\*-074.045" +specifies 40.689\*d\*_N, 74.045\*d\*_W, +.B "\*-c\ +4041.4\*-07402.7" +specifies 40\*d\*_41.4\*m\*_N, 74\*d\*_2.7\*m\*_W, and +.B "\*-c\ +404121\*-0740240" +specifies 40\*d\*_41\*m\*_21\*s\*_N, 74\*d\*_2\*m\*_40\*s\*_W. +If +.I coord +is not one of the documented forms, the resulting behavior is unspecified. +.TP +.BI "\*-n " limit +When +.B \*-c +is used, display the closest +.I limit +locations (default 10). +.TP +.B "\*-\*-help" +Output help information and exit. +.TP +.B "\*-\*-version" +Output version information and exit. .SH "ENVIRONMENT VARIABLES" .TP \f3AWK\fP Name of a Posix-compliant -.I awk +.B awk program (default: .BR awk ). .TP \f3TZDIR\fP -Name of the directory containing time zone data files (default: -.BR /usr/local/etc/zoneinfo ). +Name of the directory containing timezone data files (default: +.BR /usr/share/zoneinfo ). .SH FILES .TP \f2TZDIR\fP\f3/iso3166.tab\fP Table of ISO 3166 2-letter country codes and country names. .TP -\f2TZDIR\fP\f3/zone.tab\fP -Table of country codes, latitude and longitude, TZ values, and +\f2TZDIR\fP\f3/zone1970.tab\fP +Table of country codes, latitude and longitude, timezones, and descriptive comments. .TP \f2TZDIR\fP\f3/\fP\f2TZ\fP -Time zone data file for time zone \f2TZ\fP. +Timezone data file for timezone \f2TZ\fP. .SH "EXIT STATUS" -The exit status is zero if a time zone was successfully obtained from the user, +The exit status is zero if a timezone was successfully obtained from the user, nonzero otherwise. .SH "SEE ALSO" newctime(3), tzfile(5), zdump(8), zic(8) -.\" @(#)tzselect.8 8.2 +.SH NOTES +Applications should not assume that +.BR tzselect 's +output matches the user's political preferences. .\" This file is in the public domain, so clarified as of .\" 2009-05-17 by Arthur David Olson. |