我正在查看一个批处理文件,它定义了以下变量:
set _SCRIPT_DRIVE=%~d0
set _SCRIPT_PATH=%~p0%~d0或%~p0实际上是什么意思?发布于 2008-09-21 20:57:34
神奇变量%n包含用于调用文件的参数:%0是bat文件本身的路径,%1是后面的第一个参数,%2是第二个参数,依此类推。
因为参数通常是文件路径,所以有一些额外的语法来提取路径的部分。~d是驱动器,~p是路径(没有驱动器),~n是文件名。它们可以结合在一起,因此~dp是drive+path。
因此,%~dp0在bat中非常有用:它是执行bat文件所在的文件夹。
您还可以获得有关文件的其他类型的元信息:~t是时间戳,~z是大小。
查找这里以获得所有命令行命令的引用。倾斜魔法码在为下描述.
发布于 2008-09-21 20:55:38
它们是增强的可变替换。它们修改批处理文件中使用的%N变量。如果您喜欢在Windows中进行批处理编程,则非常有用。
%~I - expands %I removing any surrounding quotes ("")
%~fI - expands %I to a fully qualified path name
%~dI - expands %I to a drive letter only
%~pI - expands %I to a path only
%~nI - expands %I to a file name only
%~xI - expands %I to a file extension only
%~sI - expanded path contains short names only
%~aI - expands %I to file attributes of file
%~tI - expands %I to date/time of file
%~zI - expands %I to size of file
%~$PATH:I - searches the directories listed in the PATH
environment variable and expands %I to the
fully qualified name of the first one found.
If the environment variable name is not
defined or the file is not found by the
search, then this modifier expands to the
empty string您可以通过运行FOR /?找到上面的内容。
发布于 2012-09-18 20:49:21
是的,您还可以使用下面给出的其他快捷方式。在您的命令中,~d0表示第0次参数的驱动器号。
~ expands the given variable
d gets the drive letter only
0 is the argument you are referencing因为第0参数是脚本路径,所以它为您获取路径的驱动器号。您也可以使用以下快捷方式。
%~1 - expands %1 removing any surrounding quotes (")
%~f1 - expands %1 to a fully qualified path name
%~d1 - expands %1 to a drive letter only
%~p1 - expands %1 to a path only
%~n1 - expands %1 to a file name only
%~x1 - expands %1 to a file extension only
%~s1 - expanded path contains short names only
%~a1 - expands %1 to file attributes
%~t1 - expands %1 to date/time of file
%~z1 - expands %1 to size of file
%~$PATH:1 - searches the directories listed in the PATH
environment variable and expands %1 to the fully
qualified name of the first one found. If the
environment variable name is not defined or the
file is not found by the search, then this
modifier expands to the empty string
%~dp1 - expands %1 to a drive letter and path only
%~nx1 - expands %1 to a file name and extension only
%~dp$PATH:1 - searches the directories listed in the PATH
environment variable for %1 and expands to the
drive letter and path of the first one found.
%~ftza1 - expands %1 to a DIR like output line在运行调用/时,也可以直接在命令提示符中找到这一点吗?还是为/?
https://stackoverflow.com/questions/112055
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