GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.2 |
|
 |
date(1) |
 |
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=STRING
display time described by STRING, not ’now’
−f, −−file=DATEFILE
like −−date once for each line of DATEFILE
−r, −−reference=FILE
display the last modification time of FILE
−R, −−rfc−2822
output date and time in RFC 2822 format
−−rfc−3339=TIMESPEC
output date and time in RFC 3339 format. TIMESPEC=’date’, ’seconds’, or ’ns’ for date and time to the indicated precision.
−s, −−set=STRING
set time described by STRING
−u, −−utc, −−universal
print or set Coordinated Universal Time
|
−−help |
display this help and exit |
−−version
output 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 % | ||
|
%a |
locale’s abbreviated weekday name (e.g., Sun) | ||
|
%A |
locale’s full weekday name (e.g., Sunday) | ||
|
%b |
locale’s abbreviated month name (e.g., Jan) | ||
|
%B |
locale’s full month name (e.g., January) | ||
|
%c |
locale’s date and time (e.g., Thu Mar 3 23:05:25 2005) | ||
|
%C |
century; like %Y, except omit last two digits (e.g., 21) | ||
|
%d |
day of month (e.g, 01) | ||
|
%D |
date; same as %m/%d/%y | ||
|
%e |
day of month, space padded; same as %_d | ||
|
%F |
full date; same as %Y−%m−%d | ||
|
%g |
last two digits of year of ISO week number (see %G) | ||
|
%G |
year of ISO week number (see %V); normally useful only with %V | ||
|
%h |
same as %b | ||
|
%H |
hour (00..23) | ||
|
%I |
hour (01..12) | ||
|
%j |
day of year (001..366) | ||
|
%k |
hour ( 0..23) | ||
|
%l |
hour ( 1..12) | ||
|
%m |
month (01..12) | ||
|
%M |
minute (00..59) | ||
|
%n |
a newline | ||
|
%N |
nanoseconds (000000000..999999999) | ||
|
%p |
locale’s equivalent of either AM or PM; blank if not known | ||
|
%P |
like %p, but lower case | ||
|
%r |
locale’s 12−hour clock time (e.g., 11:11:04 PM) | ||
|
%R |
24−hour hour and minute; same as %H:%M | ||
|
%s |
seconds since 1970−01−01 00:00:00 UTC | ||
|
%S |
second (00..60) | ||
|
%t |
a tab | ||
|
%T |
time; same as %H:%M:%S | ||
|
%u |
day of week (1..7); 1 is Monday | ||
|
%U |
week number of year, with Sunday as first day of week (00..53) | ||
|
%V |
ISO week number, with Monday as first day of week (01..53) | ||
|
%w |
day of week (0..6); 0 is Sunday | ||
|
%W |
week number of year, with Monday as first day of week (00..53) | ||
|
%x |
locale’s date representation (e.g., 12/31/99) | ||
|
%X |
locale’s time representation (e.g., 23:13:48) | ||
|
%y |
last two digits of year (00..99) | ||
|
%Y |
year | ||
|
%z |
+hhmm numeric timezone (e.g., −0400) | ||
|
%:z |
+hh:mm numeric timezone (e.g., −04:00) | ||
|
%::z |
+hh:mm:ss numeric time zone (e.g., −04:00:00) | ||
|
%:::z |
numeric time zone with : to necessary precision (e.g., −04, +05:30) | ||
|
%Z |
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.
|
TZ |
Specifies the timezone, unless overridden by command line parameters. If neither is specified, the setting from /etc/localtime is used. |
Written by David MacKenzie.
Report bugs to <bug−coreutils@gnu.org>.
Copyright
© 2006 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it
under the terms of the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>. There is NO
WARRANTY, to the extent permitted by law.
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.
|
date(1) | |