xclock
analog / digital clock for X
see also :
X - xrdb - time
Synopsis
xclock [
-help ] [ -analog |
-digital ] [ -brief ] [
-chime ] [ -hd color ] [
-hl color ] [ -update
seconds ] [ -strftime format ] [
-twelve | -twentyfour | -utime ]
[ -padding number ] [
-norender ] [ -render ] [
-sharp ] [ -face pattern
]
add an example, a script, a trick and tips
examples
source
xclock -digital -brief -bg navy -fg orange -update 1 &
source
export DISPLAY=:1.0
xclock &
source
alias xclock='xclock -fg white -bg black -chime'
description
The
xclock program displays the time in analog or digital
form. The time is continuously updated at a frequency which
may be specified by the user.
options
Xclock
accepts all of the standard X Toolkit command line options
along with the additional options listed below:
-help
This option indicates that a brief summary of the
allowed options should be printed on the standard error.
-analog
This option indicates that a conventional 12 hour clock
face with tick marks and hands should be used. This is the
default.
-digital or
-d
This option indicates that a 24
hour digital clock should be used.
-brief
This option indicates that the digital clock should only
display the hours and minutes fields. The default is to show
the full time and date information.
-utime
This option indicates that a digital clock should
display seconds since the Epoch (in format ’970012340
seconds since Epoch’ instead of a standard 24-hour
time.
-strftime
format
This option allows an
strftime(3) format string to be specified for the digital
clock’s display.
-twelve
This option indicates that a digital clock should
display the time in twelve hour format.
-twentyfour
This option indicates that a
digital clock should display the time in twenty-four hour
format. This is the default when a digital clock is
used.
-chime
This option indicates that the clock should chime once
on the half hour and twice on the hour.
-hands
color (or -hd color)
This option specifies the color
of the hands on an analog clock. The default is
black. This option is effectively ignored when
Xrender is in use.
-highlight
color (or -hl color)
This option specifies the color
of the edges of the hands on an analog clock, and is only
useful on color displays. The default is black. This
option is effectively ignored when Xrender is in use.
-update
seconds
This option specifies the
frequency in seconds at which xclock should update
its display. If the clock is obscured and then exposed, it
will be updated immediately. A value of 30 seconds or less
will enable a second hand on an analog clock. The default is
60 seconds.
-padding
number
This option specifies the width
in pixels of the padding between the window border and clock
text or picture. The default is 10 on a digital clock and 8
on an analog clock.
-render
This option tells xclock to use the Xrender
extension to draw an anti-aliased face. This is the default
if xclock has been compiled with Xrender support.
Note that the color selection options and resources used
when Xrender is in effect differ from the standard
options.
-norender
This option turns off the use
of Xrender to draw the clock.
-sharp
This option tells xclock to use sharper edges
when drawn using the Xrender extension.
-face
pattern
This option specifies the font
to use in digital mode when the Xrender extension is used.
Patterns are specified using the fontconfig face format
described in the Font Names section of
fonts.conf(5).
display
to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global
resources stored in the RESOURCE_MANAGER property.
environment
files
/etc/X11/app-defaults/XClock
specifies required resources
widgets
In order to specify resources, it is useful to know the hierarchy
of the widgets which compose xclock. In the notation
below, indentation indicates hierarchical structure. The widget
class name is given first, followed by the widget instance name.
XClock xclock
Clock clock
x defaults
This program uses the Clock widget. It understands all of
the core resource names and classes as well as:
width (class Width)
Specifies the width of the clock. The default for analog clocks
is 164 pixels; the default for digital clocks is whatever is
needed to hold the clock when displayed in the chosen font.
height (class Height)
Specifies the height of the clock. The default for analog clocks
is 164 pixels; the default for digital clocks is whatever is
needed to hold the clock when displayed in the chosen font.
update (class Interval)
Specifies the frequency in seconds at which the time should be
redisplayed.
foreground (class Foreground)
Specifies the color for the tick marks. The default depends on
whether reverseVideo is specified. If reverseVideo
is specified the default is lwhite, otherwise the default
is black.
hands (class Foreground)
Specifies the color of the insides of the clock’s hands. The
default depends on whether reverseVideo is specified. If
reverseVideo is specified the default is lwhite,
otherwise the default is black. Note that this resource is
not used when Xrender is in effect.
highlight (class Foreground)
Specifies the color used to highlight the clock’s hands. The
default is
depends on whether reverseVideo is specified. If
reverseVideo is specified the default is lwhite,
otherwise the default is black. Note that this resource is
not used when Xrender is in effect.
analog (class Boolean)
Specifies whether or not an analog clock should be used instead
of a digital one. The default is True.
twentyfour (class Boolean)
Specifies whether or not a digital clock should display the time
in twenty-four hour format. The default is True.
chime (class Boolean)
Specifies whether or not a bell should be rung on the hour and
half hour.
padding (class Margin)
Specifies the amount of internal padding in pixels to be used.
The default is 8.
font (class Font)
Specifies the font to be used for the digital clock. Note that
variable width fonts currently will not always display correctly.
This font is only used when Xrender is not in effect.
render (class Boolean)
Specifies whether or not the Xrender extension should be used for
the display. The default is True if xclock has been
compiled with Xrender support.
When Xrender is in effect, the following additional resources are
understood:
face (class FaceName)
Specify the pattern for the font to be used for the digital clock
when Xrender is used. Patterns are specified using the fontconfig
face format described in the Font Names section of
fonts.conf(5).
sharp (class Boolean)
Specifies if sharp edges should be used when rendering the clock.
The default is False.
buffer (class Boolean)
Specifies that the updates of the image are drawn to a pixmap
before copied into the window instead drawing them into the
window directly.
The defaults of the following color resources depend on whether
reverseVideo is specified. If reverseVideo is
specified the default is lwhite, otherwise the default is
black.
hourColor (class Foreground)
The color of the hour hand.
minuteColor (class Foreground)
The color of the minute hand.
secondColor (class Foreground)
The color of the second hand.
majorColor (class Foreground)
The color of the major scale ticks (i. e. each five minutes).
minorColor (class Foreground)
The color of the minor scale ticks (between major ticks).
bugs
Xclock
believes the system clock.
When in digital
mode, the string should be centered automatically.
see also
X , xrdb ,
time , fonts.conf .
authors
Tony Della Fera
(MIT-Athena, DEC)
Dave Mankins (MIT-Athena, BBN)
Ed Moy (UC Berkeley)