我在看一个批处理文件,它定义了以下变量:
set _SCRIPT_DRIVE=%~d0
set _SCRIPT_PATH=%~p0
%~d0或%~p0到底是什么意思? 是否有一组众所周知的值,如当前目录、驱动器、脚本参数? 还有其他类似的捷径可以用吗?
我在看一个批处理文件,它定义了以下变量:
set _SCRIPT_DRIVE=%~d0
set _SCRIPT_PATH=%~p0
%~d0或%~p0到底是什么意思? 是否有一组众所周知的值,如当前目录、驱动器、脚本参数? 还有其他类似的捷径可以用吗?
当前回答
它显示您当前所在的文件或目录的当前位置。例如;如果批处理文件在桌面目录中,那么“%~dp0”将显示桌面目录。如果你想显示当前目录和当前文件名,你可以输入“%~dp0%~n0%~x0”。
其他回答
另一个有很大帮助的技巧是,要将当前目录设置到不同的驱动器,必须先使用%~d0,然后使用cd %~dp0。这将把目录更改为批处理文件的驱动器,然后更改为其文件夹。
对于#oneLinerLovers, cd /d %~dp0将同时更改驱动器和目录:)
希望这能帮助到一些人。
它们是增强的变量替换。它们修改批处理文件中使用的%N个变量。如果你喜欢在Windows中进行批处理编程,这很有用。
%~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
%~$PATH:I - searches the directories listed in the PATH
environment variable and expands %I to the
fully qualified name of the first one found.
If the environment variable name is not
defined or the file is not found by the
search, then this modifier expands to the
empty string
您可以通过运行FOR /?找到上面的内容。
它显示您当前所在的文件或目录的当前位置。例如;如果批处理文件在桌面目录中,那么“%~dp0”将显示桌面目录。如果你想显示当前目录和当前文件名,你可以输入“%~dp0%~n0%~x0”。
%~d0提供参数0的驱动器号(脚本名),%~p0提供路径。
是的,你还可以使用下面给出的其他快捷方式。 在您的命令中,~d0表示第0个参数的驱动器号。
~ expands the given variable
d gets the drive letter only
0 is the argument you are referencing
由于第0个参数是脚本路径,它为您获取路径的驱动器号。你也可以使用下面的快捷方式。
%~1 - expands %1 removing any surrounding quotes (")
%~f1 - expands %1 to a fully qualified path name
%~d1 - expands %1 to a drive letter only
%~p1 - expands %1 to a path only
%~n1 - expands %1 to a file name only
%~x1 - expands %1 to a file extension only
%~s1 - expanded path contains short names only
%~a1 - expands %1 to file attributes
%~t1 - expands %1 to date/time of file
%~z1 - expands %1 to size of file
%~$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
这也可以直接在命令提示符中找到,当你运行CALL /?或FOR /?