Custom tab in BO to lauch a bash script

[piotxa]

Hello all, I'm new on writing here but not on reading.

 

I've created a bash script to download and modify a products csv to prepare it to be understood by prestashop import module.

I´d like to have access from BO to a link which launch the script.

I have added a new tab (new tables on data base and new tab at "Employers -> Tabs") but I don't know the way to add html to be displayed on my custom tab at BO.

I've also tryed with a custom module, inserting my html code into the tpl file but I cannot get it viewable... I'm a begginer with php.

 

Any help, please?