Local Test Cases:
# there can be no spaces on either side of the equal sign, before the error has been out here
yesterday= ' date-d last-day +%y-%m-%d '
echo $yesterday
curday= ' Date +%y-%m-%d '
echo $curday
echo "Now time: ' Date ' +%y%m%d%T '"
On the Sina Weibo homepage, you can see that the time displayed after each microblog is not in the standard year-month-day format, but the time difference after conversion, for example: published five minutes ago and two hours ago, similar functions
Date of the Linux command I used-Display, modify system date TimeThis article link: http://codingstandards.iteye.com/blog/1157513 (reproduced please specify the source)Description of UseThe ATE command can be used to display and modify the system
20.1 Shell Script IntroductionShell is a scripting language• Logic Judgments, loops, and other syntax can be used• Functions can be customizedShell is a collection of system commandsshell scripts enable automated operations, which can greatly
Description of UseThe ATE command can be used to display and modify the system datetime, noting that it is not a time command.Common parametersFormat: DateDisplays the current date time.Format: Date mmddhhmmFormat: Date mmddhhmmyyyyFormat: Date
On the Sina Weibo homepage, you can see that the time displayed after each microblog is not in the standard year-month-day format, but the time difference after conversion, for example: posted 5 minutes ago and 2 hours ago, it looks more intuitive
1. calculate the maximum number of days of calendar month. getinstance (); time. clear (); time. set (calendar. year, year); // year is inttime. set (calendar. month, I-1); // note that the default January Calendar Object is 0 int day = time.
To implement similar functions, use JS as follows:
I. javascript function implementation:Instance 1:Copy codeThe Code is as follows:// JavaScript Functions:Var minute = 1000*60;Var hour = minute * 60;Var day = hour * 24;Var halfamonth = day * 15;Var
It is convenient to use timestamp to record datetime, but sometimes it is not necessary to display the milliseconds after the decimal point, so you need to redefine the format when converting to string. timestamp converted to string:
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