man Options and their Descriptions available to a UNIX System Administrator
man
options and their descriptions:
man -a
: Retrieves all manual pages for a specific command
man -k
: Conducts keyword searches for all manual pages
man -S
: Provides a comma-separated list of sections containing a specific command
man -M
: Specifies the particular directories to search
man -C
: Specifies a customized man.conf file
$ man date
DATE(1) BSD General Commands Manual DATE(1)
NAME
date -- display or set date and time
SYNOPSIS
date [-ju] [-r seconds] [-v [+|-]val[ymwdHMS]] ... [+output_fmt]
date [-jnu] [[[mm]dd]HH]MM[[cc]yy][.ss]
date [-jnu] -f input_fmt new_date [+output_fmt]
date [-d dst] [-t minutes_west]
DESCRIPTION
When invoked without arguments, the date utility displays the current
date and time. Otherwise, depending on the options specified, date will
set the date and time or print it in a user-defined way.
The date 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 hard-
ware clock are updated.
Only the superuser may set the date, and if the system securelevel (see
securelevel(8)) is greater than 1, the time may not be changed by more
than 1 second.
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