|-help||This option indicates that a brief summary of the allowed options should be printed on the standard error.|
|This option, if enabled, indicates that the bell will beep once on the half hour and twice on the hour.|
|This specifies a sound file to use to play the dclock hourly chime. If unspecified, or the string "NULL" is used, the system beep is used instead. The sound file format must be understood by the executable specified by option "audioPlay". The "NULL" value is a means to override a system-level setting to disable external sound playing.|
|This option, if enabled, causes the clock to display the time in 24 hour (military) time format.|
|This option, causes the clock to display the UTC (GMT) time rather than the default local time.|
|This option places [or removes] "tails" on the digits 6 and 9.|
|When the time changes, the digits scroll from the previous digit to the next digit. The -noscroll option turns the behavior off.|
|The colon separating hours from minutes blinks on and off once per second. With the -noblink option, it remains on permanently.|
|This option determines whether or not the clock display remains in the reverse video state after the alarm goes off.|
|This option, when enabled, causes the display to fade from one digit to the next instead of jumping or scrolling. If fade is specified, the scroll attribute will be automatically disabled.|
|The fadeRate attribute takes an integer value which specifies the number of milliseconds to wait between iterations when fading from one digit to the next. A larger value will make the fade slower and more pronounced. The default is 50.|
|Specifies an executable to use to play audio files for the bell and alarm. The default is none, which falls back to using the system bell for both the dclock bell and alarm.|
The date is printed under the time in the specified font. The string
displayed is in the "format" argument. The format corresponds to the
system call strftime() (see strftime(3)).
dclock -date "Today is %A"
Useful examples of strftime() formatting:
%A Full weekday name %a Three-char weekday name (Sun, Mon, Tue...) %B Full month name %b Three-char month name (Jan, Feb, Mar...) %d The date (numerical day number of the month) %Y Full year (4 digits) %y 2-digit year number
|-dateup||By default, the date string is at the bottom of the display. This option starts it at the top, instead.|
|The alarm is turned on or off. Alarm rings bell and toggles reverse video.|
|If alarm is set, it goes off at time specified in 24-hour format.|
|This specifies a sound file to use to play the dclock alarm. If unspecified, or the string "NULL" is used, the system beep is used instead. The sound file format must be understood by the executable specified by option "audioPlay". The "NULL" string is a means to override a system-level setting to disable external sound playing.|
|-seconds||This option will update the clock every second and display the time including the seconds.|
|Sets the angle of the digits according to the (floating-point) slope value value.|
|Sets the segment thickness as a (floating-point) ratio to digit width.|
|Sets the digit spacing as a (floating-point) ratio to digit width.|
|Sets the seconds digit size as a (floating-point) ratio to the digit size of the minutes and hours digits.|
|Sets the spacing of the seconds digits from the other digits as a (floating-point) ratio to digit width. -bg color This option specifies the color to use for the background of the window. The default is darkslategray.|
|-bd color||This option specifies the color to use for the border of the window. The default is black.|
|-bw number||This option specifies the width in pixels of the border surrounding the window.|
|-fg color||This option specifies the color to use for displaying text and digit segments. The default is chartreuse.|
|This option specifies the color to use for displaying digit segments when turned off. The default is darkgreen.|
|-fn font||This option specifies the font to be used for displaying normal text. The default is Fixed.|
|This option specifies the prefered size and position of the clock window.|
|This option specifies the X server to contact.|
|This option specifies a resource string to be used. This is especially useful for setting resources that do not have separate command line options.|
It understands all of the core resource names and classes as well as:
width (class Width) Specifies the width of the clock. height (class Height) Specifies the height of the clock. foreground (class Foreground) Specifies the color for the digits. Using the class specifies the color for all things that normally would appear in the foreground color. The default is chartreuse. background (class Background) Specifies the background color, by default DarkSlateGray. led_off (class Foreground) Specifies the color of the digit segments when off. This can be set to be the background color, or it can be set to a color just slightly different from the background, matching the segment colors, to give just a hint of color. Default DarkGreen works well with the default segment color of chartreuse. bell (class Boolean) Specifies whether or not a bell should be rung on the hour and half hour. font (class Font) Specifies the font to be used for the date. militaryTime (class Boolean) Specifies whether the military (24hr) time format should be used. utc (class Boolean) Specifies whether UTC (GMT) time should be used, rather than local time. reverseVideo (class ReverseVideo) Specifies that the foreground and background colors should be reversed. scroll (class Boolean) Specifies whether the digits should scroll or not. fade (class Boolean) Specifies whether the digits should fade or not. fadeRate (class Time) The number of milliseconds of delay between iterations of fading. seconds (class Boolean) Specifies whether the seconds should be displayed or not. bell (class Boolean) Specifies whether the bell should sound on the half hour and on the hour. tails (class Boolean) Specifies whether tails should be put on the digits 6 and 9. blink (class Boolean) Specifies whether the colon separating hours from minutes should blink on and off once per second or remain on permanently. alarm (class Boolean) Specifies whether the alarm should go off at the specified time (alarmTime). alarmTime (class String) Specifies the time alarm goes off if alarm is set. alarmPersist (class Boolean) Specifies whether the alarm should remain in reverse video after the alarm goes off, or return to normal video. angle (class Float) Defines the slope of the digits (default 6). smallRatio (class Float) Defines the size of the seconds digits compared to the minutes digits (default 2/3). secondGap (class Float) Defines the amount of space between the minutes digits and the seconds digits (default 0.3). widthFactor (class Float) Determines the width of segments as a ratio to digit width (default 0.13). spaceFactor (class Float) Determines the spacing between digit as a ratio to digit width (default 0.09). bellFile (class String) Specifies an audio file to play for the hourly bell (no default). alarmFile (class String) Specifies an audio file to play for the alarm (no default). audioPlay (class String) Specifies an executable to use to play the bell and alarm audio files, if they are specified. Otherwise, the system bell is used (default is "/usr/local/bin/play").
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.
Dclock believes the system clock.
Scrolling from 9 to 10 OClock seems weird, but chances are you wont notice it.
Scrolling can take so long that dclock may lag behind system time by a fraction of a second and eventually skip a second to catch up. In modern times, it should be dealing with this by tracking seconds with a separate thread.
Copyright (c) 1988, Dan Heller. Revisions copyright (c) 1993 and 1999, Tim Edwards.
Original dclock by Dan Heller (1988) <firstname.lastname@example.org> or <email@example.com>
Fade & tails by Steve Reinhardt, <firstname.lastname@example.org>
Derived geometry by Tim Edwards (1993) <email@example.com>
Antialiasing, color fades, and audio play by Tim Edwards (1999) <firstname.lastname@example.org>
|X Version 11||DCLOCK (1)||1 March 1988|