#!/bin/bash

mkdir $HOME/folder_1
mkdir $HOME/folder_2

cd $HOME/folder_2

touch a.out b.exe c.html d.xhtml e.htm html.xml f.htmlhtm

cd $HOME/folder_1

touch a1b a2b a3b .a4b

ln -s $HOME/folder_2/b.exe a5b

chmod 444 a1b
chmod 652 .a4b

cd $HOME/folder_2

chmod 510 b.exe
chmod 755 c.html
chmod 357 html.xml

cd $HOME/folder_1

chmod u=rwx,g=w,o=r a1b
chmod u=rwx,g=rx,o= .a4b

cd $HOME/folder_2

chmod u=rx,g=rx,o=x b.exe
chmod u=rw,g=r,o=r c.html
chmod u=r,g=r,o=r html.xml