Windows中查找命令的路径 (类似Linux中的which命令)

1. where is a direct equivalent in cmd:   where  gcc

   C:\Users\Administrator> where gcc
   D:\msys64\mingw64\bin\gcc.exe

   Note that in PowerShell where itself is an alias for Where-Object, thus you need to use where.exe in PowerShell.

2. In > cmd you can also use :   for %x in (gcc.exe) do @echo %~$PATH:x

   
   C:\Users\Administrator> for %x in (gcc.exe) do @echo %~$PATH:x
   D:\msys64\mingw64\bin\gcc.exe

3. In > PowerShell you have Get-Command and its alias gcm which does the same if you pass an argument (but also works for aliases, cmdlets and functions in PowerShell):

   PS C:\Users\Administrator>  Get-Command gcc
   
   CommandType     Name        Version    Source
   -----------     ----        -------    ------
   Application     gcc.exe     0.0.0.0    D:\msys64\mingw64\bin\gcc.exe

   The first returned command is the one that would be executed.