env and set

1cpuer

e:\cmder-1
λ env | grep 'PATH' | sed "s/:/&\n/g"
CLASSPATH=.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;
HOMEPATH=\Users\Administrator
PATH=/e/cmder-1/bin:
/cmd:
/e/cmder-1/vendor/conemu-maximus5/ConEmu/Scripts:
/e/cmder-1/vendor/conemu-maximus5:
/e/cmder-1/vendor/conemu-maximus5/ConEmu:
/c/WINDOWS/System32:
/c/WINDOWS:
/c/WINDOWS/system32/WBEM:
/c/Windows/System32:
/usr/bin:
/e/cmder/cmder_mini/bin:
/c/windows/system32:
/usr/bin:
/usr/share/vim/vim74:
/e/cmder-1
PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.JS;.WS;.MSC

e:\cmder-1
λ set | grep 'Path=' | sed "s/;/&\n/g"
Path=E:\cmder-1\bin;
E:\cmder-1\vendor\git-for-windows\cmd;
E:\cmder-1\vendor\conemu-maximus5\ConEmu\Scripts;
E:\cmder-1\vendor\conemu-maximus5;
E:\cmder-1\vendor\conemu-maximus5\ConEmu;
C:\WINDOWS\System32;
C:\WINDOWS;
C:\WINDOWS\system32\WBEM;
C:\Windows\System32;
e:\cmder-1\vendor\git-for-windows\usr\bin;
e:\cmder\cmder_mini\bin;
c:\windows\system32;
E:\cmder-1\vendor\git-for-windows\usr\bin;
E:\cmder-1\vendor\git-for-windows\usr\share\vim\vim74;
E:\cmder-1\

e:\cmder-1
λ unset Path=C:\Windows\System32
'unset' 不是内部或外部命令，也不是可运行的程序
或批处理文件。

liion631818

错误已经告诉你答案了，你这个明显就是bat和shell的命令混用