如何在 Powershell 中为特定命令设置别名？

有一个命令我经常输入：java -jar foo --param1 --param2, --param-n。如何创建命令别名来运行此命令，如下所示：

launch_foo --param3

where launch_foo被翻译成完整的命令？

你必须创建一个函数。幸运的是，使用标准参数创建“别名样式”函数并不困难：

Function launch_foo { java -jar foo --param1 --param2 --param-n $args }

You can now invoke the function either as launch_foo or as launch_foo --param3. Note that if you don't pass in any additional arguments, $args will be $null and will have no effect^[1] on the default arguments specified in the function.

现在，Powershell 中存在别名的概念，但别名是 cmdlet 或命令的备用名称，您不能向别名定义添加参数。您可以使用别名作为备用可执行文件或 cmdlet 名称。别名的一些示例：

Set-Alias v vim
Set-Alias list Get-ChildItem
Set-Alias 2json ConvertTo-Json

v会跑vim, list会跑Get-ChildItem, and 2json会跑ConvertTo-Json.

^[1] Note that this is only true for external commands. If you attempt to alias a cmdlet or function with parameters in this way, a $null argument will be evaluated as a $null value, which $args would be $null if not provided. Depending on the cmdlet this could throw an error, have no effect, or have an undesired effect. Depending on the cmdlet, you may also need to splat @args to appropriately pass on the arguments.