59 lines
1.7 KiB
Groff
59 lines
1.7 KiB
Groff
.TH DATE 1 "16 July 1983"
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.\" @(#)date.1 1.1 92/07/30 SMI; from UCB 4.1
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.SH NAME
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date \- display or set the date
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.SH SYNOPSIS
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.B date
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.RB "[ \fB\-u\fP ] [ yymmddhhmm [ " . "ss ] ]"
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.SH DESCRIPTION
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.IX "date command" "" "\fLdate\fP \(em date and time"
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.IX display date
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.IX display "date and time"
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.IX display "time and date"
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.IX time "display date and"
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\fIDate\fP displays the current date and time when used without an argument.
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.LP
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Only the super-user may \fBset\fP the date.
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.I yy
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is the last two digits of the year; the first
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.I mm
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is the month number;
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.I dd
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is the day number in the month;
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.I hh
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is the hour number (24 hour system);
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the second
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.I mm
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is the minute number;
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.BI . ss
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(optional) specifies seconds.
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The year, month and day may be omitted; the current values are supplied
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as defaults.
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.SH OPTIONS
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.IP \fB\-u\fP
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Display the date in GMT (universal time).
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The system operates in GMT; \fIdate\fP normally takes care of the
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conversion to and from local standard and daylight time.
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\fB\-u\fP may also be used to set GMT time.
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.SH EXAMPLE
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.LP
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.IP
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date 10080045
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.LP
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sets the date to Oct 8, 12:45 AM.
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.SH FILES
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/usr/adm/wtmp to record time-setting
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.SH SEE ALSO
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utmp(5)
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.SH DIAGNOSTICS
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`Failed to set date: Not owner' if you try to change the date but are not
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the super-user.
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.\"`No permission' if
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.\"you aren't the super-user and you try to change the date;
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.\"`bad conversion' if the date set is syntactically incorrect.
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. \".SH BUGS
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. \"The system attempts to keep the date in a format closely compatible
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. \"with VMS. VMS, however, uses local time (rather than GMT) and does
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. \"not understand daylight savings time. Thus if you use both UNIX
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. \"and VMS, VMS will be running on GMT.
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