HP-UX Reference (11i v1 05/09) - 5 Miscellaneous Topics (vol 9)

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environ(5) environ(5)

Jn Julian day n (1 through 365). Leap days are not counted. Febru-

ary 29 cannot be referenced.

n The zero-based Julian day (0 through 365). Leap days are counted.

February 29 can be referenced.

Mm.n.d

The d day (0 through 6) of week n (1 through 5) of month m (1

through 12) of the year. Week 5 refers to the last day d of month

m. Week 1 is the week in which the ﬁrst day of the month falls.

Day 0 is Sunday.

time Time has the same format as offset except that no leading sign ("-"

or "+") is allowed. The default, if time is not given, is 02:00:00.

While the

STD ﬁeld and the offset ﬁeld for

STD must be speciﬁed, if the DST

ﬁeld is also provided, the system will supply default values for other ﬁelds not

speciﬁed. These default values come from ﬁle

/usr/lib/tztab (see

tztab(4)), and, in general, reﬂect the various historical dates for start and end

of summer time.

Additional names may be placed in the environment by the export command and "name=value" arguments

in sh(1), or by exec(2). It is unwise to add names that conﬂict with the following shell variables frequently

exported by

.profile ﬁles: MAIL, PS1, PS2 and IFS.

The environment of a process is accessible from C by using the global variable:

char ∗∗environ;

which points to an array of pointers to the strings that comprise the environment. The array is terminated

by a null pointer.

EXTERNAL INFLUENCES

International Code Set Support

The LANG, LC_ALL, LC_COLLATE, LC_CTYPE, LC_MESSAGES, LC_MONETARY, LC_NUMERIC, LC_TIME,

and

NLSPATH environment variables provide support for internationalized applications. The standard utilities

make use of these environment variables as described here and in the individual Environment Variables

subsection of the utilities.

If these variables specify locale categories that are not based upon the same underlying codeset, the results

are unspeciﬁed, and the behavior of regular expressions APIs’, such as,

regcomp, glob, and fnmatch

may be affected.

WARNINGS

Some HP-UX commands and library routines do not use the LANG, LC_COLLATE, LC_CTYPE, LC_MONETARY,

LC_NUMERIC, LC_TIME,

or LANGOPTS environment variables. Some commands do not use message cata-

logs, so NLSPATH does not affect their behavior. See the

EXTERNAL INFLUENCES section of speciﬁc com-

mands and library routines for implementation details.

NOTES

Coordinated Universal Time

(UTC) is equivalent to Greenwich Mean Time (GMT).

AUTHOR

environ was developed by AT&T and HP.