equivalent of indent-region?

[hw]

On Monday, 16 September 2019 00:42:51 CEST hw wrote:
> Hi,
> 
> what is the equivalent to the function indent-region that Emacs has?
> 
> Neither the TAB key (to indent a line), nor 'Tools->Indent', nor
> 'Tools->Clean Indentation' have a useful function.

PS: Let me add that I need this for perl code, just as c-perl mode of Emacs 
does.