Aliases can be redefined in certain situations (such as compiling a LCM configuration into a MOF for use with PowerShell DSC). The only safe way to script is to use the full command names (Verb-Noun).
Command names can be shadowed, you can `function get-content { "hello world" }` and that also breaks gc alias. The only safe way to script is to use the full command names including module names `Microsoft.PowerShell.Management\Get-Content`
