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21.1 date: Print or set system date and time


date [option]... [+format]
date [-u|--utc|--universal] 
[ MMDDhhmm[[CC]YY][.ss] ]

Invoking date with no format argument is equivalent to invoking `date '+%a %b %e %H:%M:%S %Z %Y''.

If given an argument that starts with a `+', date prints the current time and date (or the time and date specified by the --date option, see below) in the format defined by that argument, which is the same as in the strftime function. Except for directives, which start with `%', characters in the format string are printed unchanged. The directives are described below.

21.1.1 Time directives  %[HIklMprsSTXzZ]
21.1.2 Date directives  %[aAbBcdDhjmUwWxyY]
21.1.3 Literal directives  %[%nt]
21.1.4 Padding  Pad with zeroes, spaces (%_), or nothing (%-).
21.1.5 Setting the time  Changing the system clock.
21.1.6 Options for date  Instead of the current time.
21.1.7 Examples of date  Examples.

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