重定向运算符

成功输出流：

cmdlet > file     # Send success output to file, overwriting existing content
cmdlet >> file    # Send success output to file, appending to existing content
cmdlet 1>&2       # Send success and error output to error stream

错误输出流：

cmdlet 2> file    # Send error output to file, overwriting existing content
cmdlet 2>> file   # Send error output to file, appending to existing content
cmdlet 2>&1       # Send success and error output to success output stream

警告输出流：（PowerShell 3.0+）

cmdlet 3> file    # Send warning output to file, overwriting existing content
cmdlet 3>> file   # Send warning output to file, appending to existing content
cmdlet 3>&1       # Send success and warning output to success output stream

详细输出流：（PowerShell 3.0+）

cmdlet 4> file    # Send verbose output to file, overwriting existing content
cmdlet 4>> file   # Send verbose output to file, appending to existing content
cmdlet 4>&1       # Send success and verbose output to success output stream

调试输出流：（PowerShell 3.0+）

cmdlet 5> file    # Send debug output to file, overwriting existing content
cmdlet 5>> file   # Send debug output to file, appending to existing content
cmdlet 5>&1       # Send success and debug output to success output stream

信息输出流：（PowerShell 5.0+）

cmdlet 6> file    # Send information output to file, overwriting existing content
cmdlet 6>> file   # Send information output to file, appending to existing content
cmdlet 6>&1       # Send success and information output to success output stream 

所有输出流：

cmdlet *> file    # Send all output streams to file, overwriting existing content
cmdlet *>> file   # Send all output streams to file, appending to existing content
cmdlet *>&1       # Send all output streams to success output stream

管道运算符的差异（|）

重定向运算符仅将流重定向到文件或流重定向到流。管道运算符将管道下方的物体泵送到 cmdlet 或输出。管道的工作原理与重定向的工作方式有所不同，可以在使用 PowerShell 管道时阅读