终端上显示时间，可以这么玩

没有入门的同学，请看上一篇，这个说能够修改的。长时间在终端下工作的同学，可能都把终端配置成真正的全屏，满都显示，不能像有些系统一样自以为是模，那样很让人讨厌的。那么，总不能还要时不时去看时间吧。这个看我的吧

1、这个命令：

while sleep 1;do tput sc;tput cup 0 $(($(tput cols)-16));(date +%R);tput rc;done&

2、命令说明

　　自己可以修改的在(date +%R)部分：

具体：

FORMAT controls the output.  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., 20)
  %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; like %+4Y-%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, space padded ( 0..23); same as %_H
  %l   hour, space padded ( 1..12); same as %_I
  %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
  %q   quarter of year (1..4)
  %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 time zone (e.g., -0400)
  %:z  +hh:mm numeric time zone (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)

最常用的是X T R r 或者，直接用date就好了。

3、还有一个参数可以修改就是(($(tput cols)-16))中的数字，如果全部显示用34即可，我这里是为了和屏幕上的竖线结合，才用的16

　　我的下拉式终端yakuake设置为：

　　　　F12调出终端；

　　　　字体Hack 20pt；平滑字体，用粗体绘制强烈颜色；光标中选中方块，闪烁已启用；杂项中，行距3像素，边距0像素，选中显示竖线于列102

　　　　配色方案 Linux颜色，编辑中模糊北京，背景色透明度6%

　　　　滚动无限制

　　　　鼠标-杂项下-不选中允许终端应用程序处理单击和拖动，赋值选项中只选中选中时复制

 看效果：