"ls ~"
"ls */"
"ls /"
"ls .. /"
login user
logout user
login password
logout password
attrib -h filename
attrib +h filename
attrib /h filename
attrib \h filename
attrib -r filename
attrib +r filename
attrib /r filename
attrib \r filename
chmod ug - rwx software
chmod ug - a software
chmod ug - A software
chmod ug - Rwx software