Index: head/bin/date/date.1
===================================================================
--- head/bin/date/date.1	(revision 334501)
+++ head/bin/date/date.1	(revision 334502)
@@ -1,454 +1,454 @@
 .\"-
 .\" Copyright (c) 1980, 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" This code is derived from software contributed to Berkeley by
 .\" the Institute of Electrical and Electronics Engineers, Inc.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\" 3. Neither the name of the University nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)date.1	8.3 (Berkeley) 4/28/95
 .\" $FreeBSD$
 .\"
-.Dd May 7, 2015
+.Dd June 1, 2018
 .Dt DATE 1
 .Os
 .Sh NAME
 .Nm date
 .Nd display or set date and time
 .Sh SYNOPSIS
 .Nm
 .Op Fl jRu
 .Op Fl r Ar seconds | Ar filename
 .Oo
 .Fl v
 .Sm off
 .Op Cm + | -
 .Ar val Op Ar ymwdHMS
 .Sm on
 .Oc
 .Ar ...
 .Op Cm + Ns Ar output_fmt
 .Nm
 .Op Fl jnu
 .Sm off
 .Op Oo Oo Oo Oo Ar cc Oc Ar yy Oc Ar mm Oc Ar dd Oc Ar HH
 .Ar MM Op Ar .ss
 .Sm on
 .Nm
 .Op Fl jnRu
 .Fl f Ar input_fmt new_date
 .Op Cm + Ns Ar output_fmt
 .Nm
 .Op Fl d Ar dst
 .Op Fl t Ar minutes_west
 .Sh DESCRIPTION
 When invoked without arguments, the
 .Nm
 utility displays the current date and time.
 Otherwise, depending on the options specified,
 .Nm
 will set the date and time or print it in a user-defined way.
 .Pp
 The
 .Nm
 utility displays the date and time read from the kernel clock.
 When used to set the date and time,
 both the kernel clock and the hardware clock are updated.
 .Pp
 Only the superuser may set the date,
 and if the system securelevel (see
 .Xr securelevel 7 )
 is greater than 1,
 the time may not be changed by more than 1 second.
 .Pp
 The options are as follows:
 .Bl -tag -width Ds
 .It Fl d Ar dst
 Set the kernel's value for daylight saving time.
 If
 .Ar dst
 is non-zero, future calls
 to
 .Xr gettimeofday 2
 will return a non-zero for
 .Fa tz_dsttime .
 .It Fl f
 Use
 .Ar input_fmt
 as the format string to parse the
 .Ar new_date
 provided rather than using the default
 .Sm off
 .Oo Oo Oo Oo Oo
 .Ar cc Oc
 .Ar yy Oc
 .Ar mm Oc
 .Ar dd Oc
 .Ar HH
 .Oc Ar MM Op Ar .ss
 .Sm on
 format.
 Parsing is done using
 .Xr strptime 3 .
 .It Fl j
 Do not try to set the date.
 This allows you to use the
 .Fl f
 flag in addition to the
 .Cm +
 option to convert one date format to another.
 .It Fl n
 By default, if the
 .Xr timed 8
 daemon is running,
 .Nm
 sets the time on all of the machines in the local group.
 The
 .Fl n
 option suppresses this behavior and causes the time to be set only on the
 current machine.
 .It Fl R
 Use RFC 2822 date and time output format.
 This is equivalent to using
 .Dq Li %a, %d %b %Y \&%T %z
 as
 .Ar output_fmt
 while
 .Ev LC_TIME
 is set to the
 .Dq C
 locale .
 .It Fl r Ar seconds
 Print the date and time represented by
 .Ar seconds ,
 where
 .Ar seconds
 is the number of seconds since the Epoch
 (00:00:00 UTC, January 1, 1970;
 see
 .Xr time 3 ) ,
 and can be specified in decimal, octal, or hex.
 .It Fl r Ar filename
 Print the date and time of the last modification of
 .Ar filename .
 .It Fl t Ar minutes_west
 Set the system's value for minutes west of
 .Tn GMT .
 .Ar minutes_west
 specifies the number of minutes returned in
 .Fa tz_minuteswest
 by future calls to
 .Xr gettimeofday 2 .
 .It Fl u
 Display or set the date in
 .Tn UTC
 (Coordinated Universal) time.
 .It Fl v
 Adjust (i.e., take the current date and display the result of the
 adjustment; not actually set the date) the second, minute, hour, month
 day, week day, month or year according to
 .Ar val .
 If
 .Ar val
 is preceded with a plus or minus sign,
 the date is adjusted forwards or backwards according to the remaining string,
 otherwise the relevant part of the date is set.
 The date can be adjusted as many times as required using these flags.
 Flags are processed in the order given.
 .Pp
 When setting values
 (rather than adjusting them),
 seconds are in the range 0-59, minutes are in the range 0-59, hours are
 in the range 0-23, month days are in the range 1-31, week days are in the
 range 0-6 (Sun-Sat),
 months are in the range 1-12 (Jan-Dec)
 and years are in the range 80-38 or 1980-2038.
 .Pp
 If
 .Ar val
 is numeric, one of either
 .Ar y ,
 .Ar m ,
 .Ar w ,
 .Ar d ,
 .Ar H ,
 .Ar M
 or
 .Ar S
 must be used to specify which part of the date is to be adjusted.
 .Pp
 The week day or month may be specified using a name rather than a
 number.
 If a name is used with the plus
 (or minus)
 sign, the date will be put forwards
 (or backwards)
 to the next
 (previous)
 date that matches the given week day or month.
 This will not adjust the date,
 if the given week day or month is the same as the current one.
 .Pp
 When a date is adjusted to a specific value or in units greater than hours,
 daylight savings time considerations are ignored.
 Adjustments in units of hours or less honor daylight saving time.
 So, assuming the current date is March 26, 0:30 and that the DST adjustment
 means that the clock goes forward at 01:00 to 02:00, using
 .Fl v No +1H
 will adjust the date to March 26, 2:30.
 Likewise, if the date is October 29, 0:30 and the DST adjustment means that
 the clock goes back at 02:00 to 01:00, using
 .Fl v No +3H
 will be necessary to reach October 29, 2:30.
 .Pp
 When the date is adjusted to a specific value that does not actually exist
 (for example March 26, 1:30 BST 2000 in the Europe/London timezone),
 the date will be silently adjusted forwards in units of one hour until it
 reaches a valid time.
 When the date is adjusted to a specific value that occurs twice
 (for example October 29, 1:30 2000),
 the resulting timezone will be set so that the date matches the earlier of
 the two times.
 .Pp
 It is not possible to adjust a date to an invalid absolute day, so using
 the switches
 .Fl v No 31d Fl v No 12m
 will simply fail five months of the year.
 It is therefore usual to set the month before setting the day; using
 .Fl v No 12m Fl v No 31d
 always works.
 .Pp
 Adjusting the date by months is inherently ambiguous because
 a month is a unit of variable length depending on the current date.
 This kind of date adjustment is applied in the most intuitive way.
 First of all,
 .Nm
 tries to preserve the day of the month.
 If it is impossible because the target month is shorter than the present one,
 the last day of the target month will be the result.
 For example, using
 .Fl v No +1m
 on May 31 will adjust the date to June 30, while using the same option
 on January 30 will result in the date adjusted to the last day of February.
 This approach is also believed to make the most sense for shell scripting.
 Nevertheless, be aware that going forth and back by the same number of
 months may take you to a different date.
 .Pp
 Refer to the examples below for further details.
 .El
 .Pp
 An operand with a leading plus
 .Pq Sq +
 sign signals a user-defined format string
 which specifies the format in which to display the date and time.
 The format string may contain any of the conversion specifications
 described in the
 .Xr strftime 3
 manual page, as well as any arbitrary text.
 A newline
 .Pq Ql \en
 character is always output after the characters specified by
 the format string.
 The format string for the default display is
 .Dq +%+ .
 .Pp
 If an operand does not have a leading plus sign, it is interpreted as
 a value for setting the system's notion of the current date and time.
 The canonical representation for setting the date and time is:
 .Pp
 .Bl -tag -width Ds -compact -offset indent
 .It Ar cc
 Century
 (either 19 or 20)
 prepended to the abbreviated year.
 .It Ar yy
 Year in abbreviated form
 (e.g., 89 for 1989, 06 for 2006).
 .It Ar mm
 Numeric month, a number from 1 to 12.
 .It Ar dd
 Day, a number from 1 to 31.
 .It Ar HH
 Hour, a number from 0 to 23.
 .It Ar MM
 Minutes, a number from 0 to 59.
 .It Ar ss
-Seconds, a number from 0 to 61
-(59 plus a maximum of two leap seconds).
+Seconds, a number from 0 to 60
+(59 plus a potential leap second).
 .El
 .Pp
 Everything but the minutes is optional.
 .Pp
 Time changes for Daylight Saving Time, standard time, leap seconds,
 and leap years are handled automatically.
 .Sh ENVIRONMENT
 The following environment variables affect the execution of
 .Nm :
 .Bl -tag -width Ds
 .It Ev TZ
 The timezone to use when displaying dates.
 The normal format is a pathname relative to
 .Pa /usr/share/zoneinfo .
 For example, the command
 .Dq TZ=America/Los_Angeles date
 displays the current time in California.
 See
 .Xr environ 7
 for more information.
 .El
 .Sh FILES
 .Bl -tag -width /var/log/messages -compact
 .It Pa /var/log/utx.log
 record of date resets and time changes
 .It Pa /var/log/messages
 record of the user setting the time
 .El
 .Sh EXIT STATUS
 The
 .Nm
 utility exits 0 on success, 1 if unable to set the date, and 2
 if able to set the local date, but unable to set it globally.
 .Sh EXAMPLES
 The command:
 .Pp
 .Dl "date ""+DATE: %Y-%m-%d%nTIME: %H:%M:%S"""
 .Pp
 will display:
 .Bd -literal -offset indent
 DATE: 1987-11-21
 TIME: 13:36:16
 .Ed
 .Pp
 In the Europe/London timezone, the command:
 .Pp
 .Dl "date -v1m -v+1y"
 .Pp
 will display:
 .Pp
 .Dl "Sun Jan  4 04:15:24 GMT 1998"
 .Pp
 where it is currently
 .Li "Mon Aug  4 04:15:24 BST 1997" .
 .Pp
 The command:
 .Pp
 .Dl "date -v1d -v3m -v0y -v-1d"
 .Pp
 will display the last day of February in the year 2000:
 .Pp
 .Dl "Tue Feb 29 03:18:00 GMT 2000"
 .Pp
 So will the command:
 .Pp
 .Dl "date -v3m -v30d -v0y -v-1m"
 .Pp
 because there is no such date as the 30th of February.
 .Pp
 The command:
 .Pp
 .Dl "date -v1d -v+1m -v-1d -v-fri"
 .Pp
 will display the last Friday of the month:
 .Pp
 .Dl "Fri Aug 29 04:31:11 BST 1997"
 .Pp
 where it is currently
 .Li "Mon Aug  4 04:31:11 BST 1997" .
 .Pp
 The command:
 .Pp
 .Dl "date 8506131627"
 .Pp
 sets the date to
 .Dq Li "June 13, 1985, 4:27 PM" .
 .Pp
 .Dl "date ""+%Y%m%d%H%M.%S"""
 .Pp
 may be used on one machine to print out the date
 suitable for setting on another.
 .Qq ( Li "+%m%d%H%M%Y.%S"
 for use on
 .Tn Linux . )
 .Pp
 The command:
 .Pp
 .Dl "date 1432"
 .Pp
 sets the time to
 .Li "2:32 PM" ,
 without modifying the date.
 .Pp
 Finally the command:
 .Pp
 .Dl "date -j -f ""%a %b %d %T %Z %Y"" ""`date`"" ""+%s"""
 .Pp
 can be used to parse the output from
 .Nm
 and express it in Epoch time.
 .Sh DIAGNOSTICS
 Occasionally, when
 .Xr timed 8
 synchronizes the time on many hosts, the setting of a new time value may
 require more than a few seconds.
 On these occasions,
 .Nm
 prints:
 .Ql Network time being set .
 The message
 .Ql Communication error with timed
 occurs when the communication
 between
 .Nm
 and
 .Xr timed 8
 fails.
 .Sh SEE ALSO
 .Xr locale 1 ,
 .Xr gettimeofday 2 ,
 .Xr getutxent 3 ,
 .Xr strftime 3 ,
 .Xr strptime 3 ,
 .Xr timed 8
 .Rs
 .%T "TSP: The Time Synchronization Protocol for UNIX 4.3BSD"
 .%A R. Gusella
 .%A S. Zatti
 .Re
 .Sh STANDARDS
 The
 .Nm
 utility is expected to be compatible with
 .St -p1003.2 .
 The
 .Fl d , f , j , n , r , t ,
 and
 .Fl v
 options are all extensions to the standard.
 .Sh HISTORY
 A
 .Nm
 command appeared in
 .At v1 .
Index: head/usr.bin/at/at.man
===================================================================
--- head/usr.bin/at/at.man	(revision 334501)
+++ head/usr.bin/at/at.man	(revision 334502)
@@ -1,362 +1,362 @@
 .\" $FreeBSD$
 .Dd January 13, 2002
 .Dt "AT" 1
 .Os
 .Sh NAME
 .Nm at ,
 .Nm batch ,
 .Nm atq ,
 .Nm atrm
 .Nd queue, examine or delete jobs for later execution
 .Sh SYNOPSIS
 .Nm at
 .Op Fl q Ar queue
 .Op Fl f Ar file
 .Op Fl mldbv
 .Ar time
 .Nm at
 .Op Fl q Ar queue
 .Op Fl f Ar file
 .Op Fl mldbv
 .Fl t
 .Sm off
 .Op Oo Ar CC Oc Ar YY
 .Ar MM DD hh mm Op . Ar SS
 .Sm on
 .Nm at
 .Fl c Ar job Op Ar job ...
 .Nm at
 .Fl l Op Ar job ...
 .Nm at
 .Fl l
 .Fl q Ar queue
 .Nm at
 .Fl r Ar job Op Ar job ...
 .Pp
 .Nm atq
 .Op Fl q Ar queue
 .Op Fl v
 .Pp
 .Nm atrm
 .Ar job
 .Op Ar job ...
 .Pp
 .Nm batch
 .Op Fl q Ar queue
 .Op Fl f Ar file
 .Op Fl mv
 .Op Ar time
 .Sh DESCRIPTION
 The
 .Nm at
 and
 .Nm batch
 utilities
 read commands from standard input or a specified file which are to
 be executed at a later time, using
 .Xr sh 1 .
 .Bl -tag -width indent
 .It Nm at
 executes commands at a specified time;
 .It Nm atq
 lists the user's pending jobs, unless the user is the superuser; in that
 case, everybody's jobs are listed;
 .It Nm atrm
 deletes jobs;
 .It Nm batch
 executes commands when system load levels permit; in other words, when the load average
 drops below _LOADAVG_MX, or the value specified in the invocation of
 .Nm atrun .
 .El
 .Pp
 The
 .Nm at
 utility allows some moderately complex
 .Ar time
 specifications.
 It accepts times of the form
 .Ar HHMM
 or
 .Ar HH:MM
 to run a job at a specific time of day.
 (If that time is already past, the next day is assumed.)
 As an alternative, the following keywords may be specified:
 .Em midnight ,
 .Em noon ,
 or
 .Em teatime
 (4pm)
 and time-of-day may be suffixed with
 .Em AM
 or
 .Em PM
 for running in the morning or the evening.
 The day on which the job is to be run may also be specified
 by giving a date in the form
 .Ar \%month-name day
 with an optional
 .Ar year ,
 or giving a date of the forms
 .Ar DD.MM.YYYY ,
 .Ar DD.MM.YY ,
 .Ar MM/DD/YYYY ,
 .Ar MM/DD/YY ,
 .Ar MMDDYYYY , or
 .Ar MMDDYY .
 The specification of a date must follow the specification of
 the time of day.
 Time can also be specified as:
 .Op Em now
 .Em + Ar count \%time-units ,
 where the time-units can be
 .Em minutes ,
 .Em hours ,
 .Em days ,
 .Em weeks ,
 .Em months
 or
 .Em years
 and
 .Nm
 may be told to run the job today by suffixing the time with
 .Em today
 and to run the job tomorrow by suffixing the time with
 .Em tomorrow .
 .Pp
 For example, to run a job at 4pm three days from now, use
 .Nm at Ar 4pm + 3 days ,
 to run a job at 10:00am on July 31, use
 .Nm at Ar 10am Jul 31
 and to run a job at 1am tomorrow, use
 .Nm at Ar 1am tomorrow .
 .Pp
 The
 .Nm at
 utility also supports the
 .Tn POSIX
 time format (see
 .Fl t
 option).
 .Pp
 For both
 .Nm
 and
 .Nm batch ,
 commands are read from standard input or the file specified
 with the
 .Fl f
 option and executed.
 The working directory, the environment (except for the variables
 .Ev TERM ,
 .Ev TERMCAP ,
 .Ev DISPLAY
 and
 .Em _ )
 and the
 .Ar umask
 are retained from the time of invocation.
 An
 .Nm
 or
 .Nm batch
 command invoked from a
 .Xr su 1
 shell will retain the current userid.
 The user will be mailed standard error and standard output from his
 commands, if any.
 Mail will be sent using the command
 .Xr sendmail 8 .
 If
 .Nm
 is executed from a
 .Xr su 1
 shell, the owner of the login shell will receive the mail.
 .Pp
 The superuser may use these commands in any case.
 For other users, permission to use
 .Nm
 is determined by the files
 .Pa _PERM_PATH/at.allow
 and
 .Pa _PERM_PATH/at.deny .
 .Pp
 If the file
 .Pa _PERM_PATH/at.allow
 exists, only usernames mentioned in it are allowed to use
 .Nm .
 In these two files, a user is considered to be listed only if the user
 name has no blank or other characters before it on its line and a
 newline character immediately after the name, even at the end of
 the file.
 Other lines are ignored and may be used for comments.
 .Pp
 If
 .Pa _PERM_PATH/at.allow
 does not exist,
 .Pa _PERM_PATH/at.deny
 is checked, every username not mentioned in it is then allowed
 to use
 .Nm .
 .Pp
 If neither exists, only the superuser is allowed use of
 .Nm .
 This is the default configuration.
 .Sh IMPLEMENTATION NOTES
 Note that
 .Nm
 is implemented through the
 .Xr cron 8
 daemon by calling
 .Xr atrun 8
 every five minutes.
 This implies that the granularity of
 .Nm
 might not be optimal for every deployment.
 If a finer granularity is needed, the system crontab at
 .Pa /etc/crontab
 needs to be changed.
 .Sh OPTIONS
 .Bl -tag -width indent
 .It Fl q Ar queue
 Use the specified queue.
 A queue designation consists of a single letter; valid queue designations
 range from
 .Ar a
 to
 .Ar z
 and
 .Ar A
 to
 .Ar Z .
 The
 .Ar _DEFAULT_AT_QUEUE
 queue is the default for
 .Nm
 and the
 .Ar _DEFAULT_BATCH_QUEUE
 queue for
 .Nm batch .
 Queues with higher letters run with increased niceness.
 If a job is submitted to a queue designated with an uppercase letter, it
 is treated as if it had been submitted to batch at that time.
 If
 .Nm atq
 is given a specific queue, it will only show jobs pending in that queue.
 .It Fl m
 Send mail to the user when the job has completed even if there was no
 output.
 .It Fl f Ar file
 Read the job from
 .Ar file
 rather than standard input.
 .It Fl l
 With no arguments, list all jobs for the invoking user.
 If one or more
 job numbers are given, list only those jobs.
 .It Fl d
 Is an alias for
 .Nm atrm
 (this option is deprecated; use
 .Fl r
 instead).
 .It Fl b
 Is an alias for
 .Nm batch .
 .It Fl v
 For
 .Nm atq ,
 shows completed but not yet deleted jobs in the queue; otherwise
 shows the time the job will be executed.
 .It Fl c
 Cat the jobs listed on the command line to standard output.
 .It Fl r
 Remove the specified jobs.
 .It Fl t
 Specify the job time using the \*[Px] time format.
 The argument should be in the form
 .Sm off
 .Op Oo Ar CC Oc Ar YY
 .Ar MM DD hh mm Op . Ar SS
 .Sm on
 where each pair of letters represents the following:
 .Pp
 .Bl -tag -width indent -compact -offset indent
 .It Ar CC
 The first two digits of the year (the century).
 .It Ar YY
 The second two digits of the year.
 .It Ar MM
 The month of the year, from 1 to 12.
 .It Ar DD
 the day of the month, from 1 to 31.
 .It Ar hh
 The hour of the day, from 0 to 23.
 .It Ar mm
 The minute of the hour, from 0 to 59.
 .It Ar SS
-The second of the minute, from 0 to 61.
+The second of the minute, from 0 to 60.
 .El
 .Pp
 If the
 .Ar CC
 and
 .Ar YY
 letter pairs are not specified, the values default to the current
 year.
 If the
 .Ar SS
 letter pair is not specified, the value defaults to 0.
 .El
 .Sh FILES
 .Bl -tag -width _ATJOB_DIR/_LOCKFILE -compact
 .It Pa _ATJOB_DIR
 directory containing job files
 .It Pa _ATSPOOL_DIR
 directory containing output spool files
 .It Pa /var/run/utx.active
 login records
 .It Pa _PERM_PATH/at.allow
 allow permission control
 .It Pa _PERM_PATH/at.deny
 deny permission control
 .It Pa _ATJOB_DIR/_LOCKFILE
 job-creation lock file
 .El
 .Sh SEE ALSO
 .Xr nice 1 ,
 .Xr sh 1 ,
 .Xr umask 2 ,
 .Xr atrun 8 ,
 .Xr cron 8 ,
 .Xr sendmail 8
 .Sh AUTHORS
 .An -nosplit
 At was mostly written by
 .An Thomas Koenig Aq Mt ig25@rz.uni-karlsruhe.de .
 The time parsing routines are by
 .An David Parsons Aq Mt orc@pell.chi.il.us ,
 with minor enhancements by
 .An Joe Halpin Aq Mt joe.halpin@attbi.com .
 .Sh BUGS
 If the file
 .Pa /var/run/utx.active
 is not available or corrupted, or if the user is not logged on at the
 time
 .Nm
 is invoked, the mail is sent to the userid found
 in the environment variable
 .Ev LOGNAME .
 If that is undefined or empty, the current userid is assumed.
 .Pp
 The
 .Nm at
 and
 .Nm batch
 utilities
 as presently implemented are not suitable when users are competing for
 resources.
 If this is the case, another batch system such as
 .Em nqs
 may be more suitable.
 .Pp
 Specifying a date past 2038 may not work on some systems.
Index: head/usr.bin/last/last.1
===================================================================
--- head/usr.bin/last/last.1	(revision 334501)
+++ head/usr.bin/last/last.1	(revision 334502)
@@ -1,221 +1,221 @@
 .\" Copyright (c) 1980, 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\" 3. Neither the name of the University nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)last.1	8.1 (Berkeley) 6/6/93
 .\" $FreeBSD$
 .\"
-.Dd June 6, 2015
+.Dd June 1, 2018
 .Dt LAST 1
 .Os
 .Sh NAME
 .Nm last
 .Nd indicate last logins of users and ttys
 .Sh SYNOPSIS
 .Nm
 .Op Fl swy
 .Oo
 .Fl d
 .Sm off
 .Op Oo Ar CC Oc Ar YY
 .Op Ar MM DD
 .Ar hh mm
 .Op Ar .SS
 .Sm on
 .Oc
 .Op Fl f Ar file
 .Op Fl h Ar host
 .Op Fl n Ar maxrec
 .Op Fl t Ar tty
 .Op Ar user ...
 .Sh DESCRIPTION
 The
 .Nm
 utility will either list the sessions of specified
 .Ar users ,
 .Ar ttys ,
 and
 .Ar hosts ,
 in reverse time order,
 or list the users logged in at a specified date and time.
 Each line of output contains
 the user name, the tty from which the session was conducted, any
 hostname, the start and stop times for the session, and the duration
 of the session.
 If the session is still continuing or was cut short by
 a crash or shutdown,
 .Nm
 will so indicate.
 .Pp
 The following options are available:
 .Bl -tag -width indent-two
 .It Fl d Ar date
 Specify the snapshot date and time.
 All users logged in at the snapshot date and time will
 be reported.
 This may be used with the
 .Fl f
 option to derive the results from stored
 .Pa utx.log
 files.
 When this argument is provided, all other options except for
 .Fl f
 and
 .Fl n
 are ignored.
 The argument should be in the form
 .Sm off
 .Op Oo Ar CC Oc Ar YY
 .Op Ar MM DD
 .Ar hh mm
 .Op Ar .SS
 .Sm on
 where each pair of letters represents the following:
 .Pp
 .Bl -tag -width Ds -compact -offset indent
 .It Ar CC
 The first two digits of the year (the century).
 .It Ar YY
 The second two digits of the year.
 If
 .Ar YY
 is specified, but
 .Ar CC
 is not, a value for
 .Ar YY
 between 69 and 99 results in a
 .Ar CC
 value of 19.
 Otherwise, a
 .Ar CC
 value of 20 is used.
 .It Ar MM
 Month of the year, from 1 to 12.
 .It Ar DD
 Day of the month, from 1 to 31.
 .It Ar hh
 Hour of the day, from 0 to 23.
 .It Ar mm
 Minute of the hour, from 0 to 59.
 .It Ar SS
-Second of the minute, from 0 to 61.
+Second of the minute, from 0 to 60.
 .El
 .Pp
 If the
 .Ar CC
 and
 .Ar YY
 letter pairs are not specified, the values default to the current
 year.
 If the
 .Ar SS
 letter pair is not specified, the value defaults to 0.
 .It Fl f Ar file
 Read the file
 .Ar file
 instead of the default,
 .Pa /var/log/utx.log .
 .It Fl h Ar host
 .Ar Host
 names may be names or internet numbers.
 .It Fl n Ar maxrec
 Limit the report to
 .Ar maxrec
 lines.
 .It Fl s
 Report the duration of the login session in seconds, instead of the
 default days, hours and minutes.
 .It Fl t Ar tty
 Specify the
 .Ar tty .
 Tty names may be given fully or abbreviated, for example,
 .Dq Li "last -t 03"
 is
 equivalent to
 .Dq Li "last -t tty03" .
 .It Fl w
 Widen the duration field to show seconds, as well as the
 default days, hours and minutes.
 .It Fl y
 Report the year in the session start time.
 .El
 .Pp
 If multiple arguments are given,
 and a snapshot time is not specified,
 the information which applies to any of the
 arguments is printed, e.g.,
 .Dq Li "last root -t console"
 would list all of
 .Dq Li root Ns 's
 sessions as well as all sessions on the console terminal.
 If no
 users, hostnames or terminals are specified,
 .Nm
 prints a record of
 all logins and logouts.
 .Pp
 The pseudo-user
 .Ar reboot
 logs in at reboots of the system, thus
 .Dq Li last reboot
 will give an indication of mean time between reboot.
 .Pp
 If
 .Nm
 is interrupted, it indicates to what date the search has
 progressed.
 If interrupted with a quit signal
 .Nm
 indicates how
 far the search has progressed and then continues.
 .Sh FILES
 .Bl -tag -width /var/log/utx.log -compact
 .It Pa /var/log/utx.log
 login data base
 .El
 .Sh SEE ALSO
 .Xr lastcomm 1 ,
 .Xr getutxent 3 ,
 .Xr ac 8 ,
 .Xr lastlogin 8
 .Sh HISTORY
 .Nm
 utility first appeared in
 .Bx 1 .
 .Sh AUTHORS
 .An -nosplit
 The original version was written by
 .An Howard P. Katseff ;
 .An Keith Bostic
 rewrote it in 1986/87 to add functionality and to improve code quality.
 .Sh BUGS
 If a login shell should terminate abnormally for some reason, it is likely
 that a logout record will not be written to the
 .Pa utx.log
 file.
 In this case,
 .Nm
 will indicate the logout time as "shutdown".