AC(8) - System Manager’s Manual # AC(8) - System Manager’s Manual NAME # ac - connect time accounting SYNOPSIS # ac [-dp] [-t tty] [-w wtmp] [user …] DESCRIPTION # If the file /var/log/wtmp exists, a record of individual login and logout times are written to it by login(1) and init(8), respectively. ac examines these records and writes the accumulated connect time for all logins to the standard output. ...
AT(1) - General Commands Manual # AT(1) - General Commands Manual NAME # at, batch - queue, examine or delete jobs for later execution SYNOPSIS # at [-bm] [-f file] [-l [job …]] [-q queue] -t time_arg | timespec at -c | -r job … batch [-m] [-f file] [-q queue] [timespec] DESCRIPTION # at and batch read commands from standard input or a specified file which are to be executed at a later time, via the user’s shell as specified by the SHELL environment variable. ...
ATQ(1) - General Commands Manual # ATQ(1) - General Commands Manual NAME # atq - display the at(1) job queue SYNOPSIS # atq [-cnv] [-q queue] [name …] DESCRIPTION # atq displays the queue of jobs, created by the at(1) command, which are currently awaiting execution. Unless the user is the superuser, only the user’s own jobs will be displayed. With no flags, the queue is sorted in the order that the jobs will be executed. ...
ATRM(1) - General Commands Manual # ATRM(1) - General Commands Manual NAME # atrm - remove jobs spooled by at(1) SYNOPSIS # atrm [-afi] [[job] [name] …] DESCRIPTION # atrm removes jobs that were created with the at(1) command. The options are as follows: -a Remove all jobs belonging to the user invoking atrm. If the user is the superuser, remove all jobs. -f All information regarding the removal of the specified jobs is suppressed. ...
CALENDAR(1) - General Commands Manual # CALENDAR(1) - General Commands Manual NAME # calendar - reminder service SYNOPSIS # calendar [-abw] [-A num] [-B num] [-f calendarfile] [-t [[[cc]yy]mm]dd] DESCRIPTION # The calendar utility checks the current directory or the directory specified by the CALENDAR_DIR environment variable for a file named calendar and displays lines that begin with either today’s date or tomorrow’s. On Fridays, events on Friday through Monday are displayed. ...
CRON(8) - System Manager’s Manual # CRON(8) - System Manager’s Manual NAME # cron - clock daemon SYNOPSIS # cron [-n] [-l load_avg] DESCRIPTION # The cron daemon schedules commands to be run at specified dates and times. Commands that are to be run periodically are specified within crontab(5) files. Commands that are only to be run once are scheduled via the at(1) and batch(1) commands. Normally, the cron daemon is started from the /etc/rc command script. ...
CRONTAB(1) - General Commands Manual # CRONTAB(1) - General Commands Manual NAME # crontab - maintain crontab files for individual users SYNOPSIS # crontab [-u user] file crontab [-e | -l | -r] [-u user] DESCRIPTION # crontab is the program used to install, deinstall, or list the tables used to drive the cron(8) daemon. Each user can have their own crontab(5), and though these are files in /var/cron/tabs, they are not intended to be edited directly. ...
CRONTAB(5) - File Formats Manual # CRONTAB(5) - File Formats Manual NAME # crontab - tables for driving cron DESCRIPTION # A crontab file contains instructions to the cron(8) daemon of the general form: “at these times on these dates run this command”. There may be a system crontab and each user may have their own crontab. Commands in any given crontab will be executed either as the user who owns the crontab or, in the case of the system crontab, as the user specified on the command line. ...
DAILY(8) - System Manager’s Manual # DAILY(8) - System Manager’s Manual NAME # daily, weekly, monthly - periodic system maintenance DESCRIPTION # The three files /etc/daily, /etc/weekly, and /etc/monthly are shell scripts run on a periodic basis by the clock daemon, cron(8). They take care of some basic administrative tasks. Their output, if any, is mailed to root. Note: The scripts are all run as part of root’s crontab(5). However, it is strongly suggested that the root mail account be an alias that forwards messages to a real user or set of users. ...