PHP / BASH SHELL / CENTOS 7

php webpage with bash/sh script working on server and buttons to upload texfiles and process it....the main task is that we want to upload textfile and its processed by bash/shell script on the [login to view URL] button to upload textfile one button to process it...and we will like to use centos 7 server....... bid only if you know about bash/sh script, centos 7 and php my budget is 15000k inr thats all i can pay..... i am not new here the chosen person will be asked to make a demo of a single php page with a button to upload texfile and anotheer to process it...if its done well then the person will be awarded the project....thanks