date — print or set the system date and time
date [OPTION...] [+FORMAT]
date [ −u | −−utc | −−universal ] [MMDDhhmm[[CC]YY][.ss]]
Display the current time in the given FORMAT, or set the system date.
−d, −−date=STRINGdisplay time described by STRING, not `now'
−f, −−file=DATEFILElike −−date
once for each line of DATEFILE
−r, −−reference=FILEdisplay the last modification time of FILE
−R, −−rfc−2822output date and time in RFC 2822 format. Example: Mon, 07 Aug 2006 12:34:56 −0600
−−rfc−3339=TIMESPECoutput date and time in RFC 3339 format. TIMESPEC=`date', `seconds', or `ns' for date and time to the indicated precision. Date and time components are separated by a single space: 2006−08−07 12:34:56−06:00
−s, −−set=STRINGset time described by STRING
−u, −−utc, −−universalprint or set Coordinated Universal Time
−−helpdisplay this help and exit
−−versionoutput version information and exit
FORMAT controls the output. The only valid option for the second form specifies Coordinated Universal Time. Interpreted sequences are:
a literal %
locale's abbreviated weekday name (e.g., Sun)
locale's full weekday name (e.g., Sunday)
locale's abbreviated month name (e.g., Jan)
locale's full month name (e.g., January)
locale's date and time (e.g., Thu Mar 3 23:05:25 2005)
century; like %Y, except omit last two digits (e.g., 21)
day of month (e.g, 01)
date; same as %m/%d/%y
day of month, space padded; same as %_d
full date; same as %Y−%m−%d
last two digits of year of ISO week number (see %G)
year of ISO week number (see %V); normally useful only with %V
same as %b
hour (00..23)
hour (01..12)
day of year (001..366)
hour ( 0..23)
hour ( 1..12)
month (01..12)
minute (00..59)
a newline
nanoseconds (000000000..999999999)
locale's equivalent of either AM or PM; blank if not known
like %p, but lower case
locale's 12−hour clock time (e.g., 11:11:04 PM)
24−hour hour and minute; same as %H:%M
seconds since 1970−01−01 00:00:00 UTC
second (00..60)
a tab
time; same as %H:%M:%S
day of week (1..7); 1 is Monday
week number of year, with Sunday as first day of week (00..53)
ISO week number, with Monday as first day of week (01..53)
day of week (0..6); 0 is Sunday
week number of year, with Monday as first day of week (00..53)
locale's date representation (e.g., 12/31/99)
locale's time representation (e.g., 23:13:48)
last two digits of year (00..99)
year
+hhmm numeric timezone (e.g., −0400)
+hh:mm numeric timezone (e.g., −04:00)
+hh:mm:ss numeric time zone (e.g., −04:00:00)
numeric time zone with : to necessary precision (e.g., −04, +05:30)
alphabetic time zone abbreviation (e.g., EDT)
By default, date pads numeric fields with zeroes. The following optional flags may follow `%':
(hyphen) do not pad the field
_(underscore) pad with spaces
0(zero) pad with zeros
^use upper case if possible
#use opposite case if possible
After any flags comes an optional field width, as a decimal number; then an optional modifier, which is either E to use the locale's alternate representations if available, or O to use the locale's alternate numeric symbols if available.
The full documentation for date is maintained as a Texinfo manual. If the info and date programs are properly installed at your site, the command
info date
should give you access to the complete manual.
| COPYRIGHT |
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Copyright © 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. |