mkdir whm; cd whm
mkdir -p 352/{d1,work}
touch 352/{one,two}
cd 352/d1
mkdir -p notes/{platforms,langs}
cal >cal.out
touch notes/langs/java

exit

Q: In work, how can I cd to 352?

Q: In work, how can I cd to d1?

Q: In platforms, how can I cat two?

Q: In d1, does 'cd ../d1' work?

Q: In d1, does 'cat d1/cal.out' work?