units.html

Unix下基于Web的管理工具

This time must be given as a number followed by a character
for the units, such as <tt>30m</tt> or <tt>1d</tt>. Valid units are
<tt>s</tt> = seconds, <tt>m</tt> = minutes, <tt>h</tt> = hours,
<tt>d</tt> = days and <tt>w</tt> = weeks.