While I was working on my Operating System project, I encountered a “disk excee quota error”, below are some command I used to check my file:

du - ak | sort -rn | more—list and sort the size of all files within a directory
find . -atime +90 -print—find all files that are older than 90 days
find . -size +1000 -print—find all files that are greater than 500k
find . -name ‘*.tex’ -print—find all files with .tex extension