# pwsh > PowerShell Core is a cross-platform automation and configuration tool/framework. > See also: `powershell`. > More information: . - Start an interactive shell session: `pwsh` - Start an interactive shell session without loading startup configs: `pwsh -NoProfile` - Execute specific commands: `pwsh -Command "{{string}}"` - Execute a specific script: `pwsh {{path/to/script.ps1}}` - Start an interactive shell session with a specific execution policy: `pwsh -ExecutionPolicy {{AllSigned|Bypass|Default|RemoteSigned|Restricted|...}}`