[BACK]Return to at.1 CVS log [TXT][DIR] Up to [local] / src / usr.bin / at

Diff for /src/usr.bin/at/at.1 between version 1.12 and 1.13

version 1.12, 1999/09/14 05:28:23 version 1.13, 2000/03/04 21:12:00
Line 34 
Line 34 
 .Op Fl mv  .Op Fl mv
 .Op Ar time  .Op Ar time
 .Sh DESCRIPTION  .Sh DESCRIPTION
 .Nm  .Nm at
 and  and
 .Nm batch  .Nm batch
 read commands from standard input or a specified file which  read commands from standard input or a specified file which
 are to be executed at a later time, using  are to be executed at a later time, using
 .Xr sh 1 .  .Xr sh 1 .
   .Pp
   The related programs are as follows:
 .Bl -tag -width indent  .Bl -tag -width indent
 .It Nm at  .It Nm at
 Executes commands at a specified time.  Executes commands at a specified time.
 .It Nm atq  .It Nm atq
 Lists the user's pending jobs, unless the user is the superuser.  Lists the user's pending jobs, unless the user is the super-user.
 In that case, all users' jobs are listed.  In that case, all users' jobs are listed.
 .It Nm atrm  .It Nm atrm
 Deletes jobs.  Deletes jobs.
Line 54 
Line 56 
 .Nm atrun .  .Nm atrun .
 .El  .El
 .Pp  .Pp
 .Nm  The options are as follows:
   .Bl -tag -width indent
   .It Fl V
   Prints the version number to standard error.
   .It Fl q Ar queue
   Uses the specified queue.
   A queue designation consists of a single letter.  Valid queue designations
   range from
   .Sy a
   to
   .Sy z
   and
   .Sy A
   to
   .Sy Z .
   The
   .Sy c
   queue is the default for
   .Nm at
   and the
   .Sy E
   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
   Reads the job from
   .Ar file
   rather than standard input.
   .It Fl l
   An alias for
   .Nm atq .
   .It Fl d
   An alias for
   .Nm atrm .
   .It Fl b
   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
   Prints the jobs listed on the command line to standard output.
   .El
   .Pp
   .Nm at
 allows some moderately complex  allows some moderately complex
 .Ar time  .Ar time
 specifications.  It accepts times of the form  specifications.  It accepts times of the form
Line 64 
Line 120 
 to run a job at a specific time of day.  to run a job at a specific time of day.
 (If that time is already past, the next day is assumed.)  (If that time is already past, the next day is assumed.)
 You may also specify  You may also specify
 .Nm midnight ,  .Sy midnight ,
 .Nm noon ,  .Sy noon ,
 or  or
 .Nm teatime  .Sy teatime
 (4pm)  (4pm)
 and you can have a time-of-day suffixed with  and you can have a time-of-day suffixed with
 .Nm AM  .Dq AM
 or  or
 .Nm PM  .Dq PM
 for running in the morning or the evening.  for running in the morning or the evening.
 You can also say what day the job will be run,  You can also say what day the job will be run,
 by giving a date in the form  by giving a date in the form
Line 84 
Line 140 
 .Ar MM/DD/YY  .Ar MM/DD/YY
 or  or
 .Ar DD.MM.YY .  .Ar DD.MM.YY .
 The year may be given as two digits or four digits.  .Pp
   The year may be given as two or four digits.
 If the year is given as two digits, it is taken to occur as soon as  If the year is given as two digits, it is taken to occur as soon as
 possible in the future, which may be in the next century --  possible in the future, which may be in the next century --
 unless it's last year, in which case it's considered to be  unless it's last year, in which case it's considered to be
 a typo.  a typo.
   .Pp
 The specification of a date must follow the specification of  The specification of a date must follow the specification of
 the time of day.  the time of day.
 You can also give times like  You can also give times like
 .Op Nm now  .Op Sq now
 .Nm + Ar count \%time-units ,  .Sy + Ar count \%time-units ,
 where the time-units can be  where the time-units can be
 .Nm minutes ,  .Sy minutes ,
 .Nm hours ,  .Sy hours ,
 .Nm days ,  .Sy days ,
 or  or
 .Nm weeks  .Sy weeks
 and you can tell  and you can tell
 .Nm  .Nm at
 to run the job today by suffixing the time with  to run the job today by suffixing the time with
 .Nm today  .Sy today
 and to run the job tomorrow by suffixing the time with  and to run the job tomorrow by suffixing the time with
 .Nm tomorrow .  .Sy tomorrow .
 .Pp  .Pp
 For example, to run a job at 4pm three days from now, you would do  For example, to run a job at 4pm three days from now, you would do
 .Nm at 4pm + 3 days .  .Ic at 4pm + 3 days .
 To run a job at 10:00am on July 31, you would do  To run a job at 10:00am on July 31, you would do
 .Nm at 10am Jul 31 .  .Ic at 10am Jul 31 .
 To run a job at 1am tomorrow, you would do  To run a job at 1am tomorrow, you would do
 .Nm at 1am tomorrow .  .Ic at 1am tomorrow .
 .Pp  .Pp
 For both  For both
 .Nm  .Nm at
 and  and
 .Nm batch ,  .Nm batch ,
 commands are read from standard input or the file specified  commands are read from standard input or the file specified
Line 127 
Line 185 
 .Ev TERMCAP ,  .Ev TERMCAP ,
 .Ev DISPLAY ,  .Ev DISPLAY ,
 and  and
 .Ev _ )  .Ev _ ) ,
 and the  and the
 .Ar umask  .Ar umask
 are retained from the time of invocation.  are retained from the time of invocation.
 An  An
 .Nm  .Nm at
 or  or
 .Nm batch  .Nm batch
 command invoked from a  command invoked from a
Line 142 
Line 200 
 commands, if any. Mail will be sent using the command  commands, if any. Mail will be sent using the command
 .Xr sendmail 8 .  .Xr sendmail 8 .
 If  If
 .Nm  .Nm at
 is executed from a  is executed from a
 .Xr su 1  .Xr su 1
 shell, the owner of the login shell will receive the mail.  shell, the owner of the login shell will receive the mail.
 .Pp  .Pp
 The superuser may use these commands in any case.  The super-user may use these commands in any case.
 For other users, permission to use at is determined by the files  For other users, permission to use at is determined by the files
 .Pa /var/at/at.allow  .Pa /var/at/at.allow
 and  and
Line 157 
Line 215 
 .Pa /var/at/at.allow  .Pa /var/at/at.allow
 exists, only usernames mentioned in it are allowed to use  exists, only usernames mentioned in it are allowed to use
 .Nm at .  .Nm at .
 .Pp  
 If  If
 .Pa /var/at/at.allow  .Pa /var/at/at.allow
 does not exist,  does not exist,
Line 165 
Line 222 
 is checked. Every username not mentioned in it is then allowed  is checked. Every username not mentioned in it is then allowed
 to use  to use
 .Nm at .  .Nm at .
 .Pp  If neither exists, only the super-user is allowed use of
 If neither exists, only the superuser is allowed use of  
 .Nm at .  .Nm at .
 .Pp  .Pp
 An empty  An empty
 .Pa /var/at/at.deny  .Pa /var/at/at.deny
 means that every user is allowed use these commands.  means that every user is allowed use these commands.
 This is the default configuration.  This is the default configuration.
 .Sh OPTIONS  .Pp
 .Bl -tag -width indent  
 .It Fl V  
 Prints the version number to standard error.  
 .It Fl q Ar queue  
 Uses the specified queue.  
 A queue designation consists of a single letter.  Valid queue designations  
 range from  
 .Nm a  
 to  
 .Nm z  
 and  
 .Nm A  
 to  
 .Nm Z .  
 The  
 .Nm c  
 queue is the default for  
 .Nm  
 and the  
 .Nm E  
 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  
 Reads the job from  
 .Ar file  
 rather than standard input.  
 .It Fl l  
 Is an alias for  
 .Nm atq .  
 .It Fl d  
 Is an alias for  
 .Nm atrm .  
 .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  
 Prints the jobs listed on the command line to standard output.  
 .Sh FILES  .Sh FILES
 .Bl -tag -width /var/at/.lockfile -compact  .Bl -tag -width /var/at/.lockfile -compact
 .It Pa /var/at/jobs  .It Pa /var/at/jobs
Line 246 
Line 251 
 .Xr atrun 8 ,  .Xr atrun 8 ,
 .Xr cron 8 ,  .Xr cron 8 ,
 .Xr sendmail 8  .Xr sendmail 8
 .El  
 .Sh BUGS  .Sh BUGS
 If the file  If the file
 .Pa /var/run/utmp  .Pa /var/run/utmp
 is not available or corrupted, or if the user is not logged on at the  is not available or corrupted, or if the user is not logged on at the
 time  time
 .Nm  .Nm at
 is invoked, the mail is sent to the user ID found  is invoked, the mail is sent to the user ID found
 in the environment variable  in the environment variable
 .Ev LOGNAME .  .Ev LOGNAME .
 If that is undefined or empty, the current user ID is assumed.  If that is undefined or empty, the current user ID is assumed.
 .Pp  .Pp
 .Nm  .Nm at
 and  and
 .Nm batch  .Nm batch
 as presently implemented are not suitable when users are competing for  as presently implemented are not suitable when users are competing for
Line 273 
Line 277 
 only permits submission of jobs in the future, it is somewhat  only permits submission of jobs in the future, it is somewhat
 clear which century the job will run in.  clear which century the job will run in.
 .Sh AUTHORS  .Sh AUTHORS
 .Nm  .Nm at
 was mostly written by Thomas Koenig <ig25@rz.uni-karlsruhe.de>.  was mostly written by Thomas Koenig <ig25@rz.uni-karlsruhe.de>.
 The time parsing routines are by David Parsons <orc@pell.chi.il.us>.  The time parsing routines are by David Parsons <orc@pell.chi.il.us>.
Legend:
Removed from v.1.12  
changed lines
  Added in v.1.13