Dos下获取系统时间的代码

rem DOS get current time  
rem =======================  
rem get yyyy/mm/dd  
set mydate=%DATE:~0,10%  
echo %mydate%  
rem =======================  
rem get yyyy  
set yyyy=%DATE:~0,4%  
echo %yyyy%  
rem =======================  
rem get mm  
set mm=%DATE:~5,2%  
echo %mm%  
rem =======================  
rem get dd  
set dd=%DATE:~8,2%  
echo %dd%  
rem =======================  
rem get yyyy-mm-dd  
set curdate=%yyyy%-%mm%-%dd%  
echo %curdate% 

其实bat中获取时间就是利用截取日期字符串的方法

DOS下有字符处理的方法的，总结如下：

在这个日期格式下：”2013-07-22 星期一”， 这个%DATE:~0,10%得到的是2013-07-22
说明：DATE为系统变量，“:”表示开始处理前面的字符串“~0,10”表示从第0个字符开始取10个字符。

输出：

C:Documents and SettingsAdministrator>rem DOS get current time
C:Documents and SettingsAdministrator>rem =======================
C:Documents and SettingsAdministrator>rem get yyyy/mm/dd
C:Documents and SettingsAdministrator>set mydate=2013-07-22
C:Documents and SettingsAdministrator>echo 2013-07-22
2013-07-22
C:Documents and SettingsAdministrator>rem =======================
C:Documents and SettingsAdministrator>rem get yyyy
C:Documents and SettingsAdministrator>set yyyy=2013
C:Documents and SettingsAdministrator>echo 2013
2013
C:Documents and SettingsAdministrator>rem =======================
C:Documents and SettingsAdministrator>rem get mm
C:Documents and SettingsAdministrator>set mm=07
C:Documents and SettingsAdministrator>echo 07
07
C:Documents and SettingsAdministrator>rem =======================
C:Documents and SettingsAdministrator>rem get dd
C:Documents and SettingsAdministrator>set dd=22
C:Documents and SettingsAdministrator>echo 22
22
C:Documents and SettingsAdministrator>rem =======================
C:Documents and SettingsAdministrator>rem get yyyy-mm-dd
C:Documents and SettingsAdministrator>set curdate=2013 -07 -22
C:Documents and SettingsAdministrator>echo 2013 -07 -22
2013 -07 -22
C:Documents and SettingsAdministrator>

删除DOS结尾符的方法
DOS结尾符：CRLFCarriage-ReturnLine-Feed#检查文件是否含有CRLF1.filedosfile返回CRLF2.cat-adosfile返回^M#删除CRLF1.vim:setfileformat=unix#:setff=unix:w:s/^M//gc#Linux:Ctrl+V+MEnter,AIX:

Dos常用基础命令小结
一、基础命令1dir无参数：查看当前所在目录的文件和文件夹。/s：查看当前目录已经其所有子目录的文件和文件夹。/a：查看包括隐含文件的所有文件

常用dos命令及语法
常用dos命令及语法cd改变当前目录，dir列出文件和文件夹名，dir/ad/b指列出来当前目录下的文件夹echoECHO提示信息内容#解释：输出提示信息如果想关闭ECHO