File and Folder
Show file contents from tail with specific line number limit:
tail -n 200 <file>
Show file contents from head with specific line number limit:
head -n 200 <file>
Show only modified time of a file:
stat -c %y filename
Human-readable format:
stat -c %y filename | cut -d'.' -f1
File and directory size with sorting:
sudo du -ah <folder-name>/ | sort -h