a) -l use a long listing format
-t sort by modification time, newest first
b) -l use a long listing format
-a, --all do not ignore entries starting with .
-h, --human-readable with -l and/or -s, print human readable sizes (e.g., 1K 234M 2G)
-t sort by modification time, newest first
c) -l use a long listing format
--full-time like -l --time-style=full-iso
d) sem o - antes do l não vai funcionar
--time=WORD with -l, show time as WORD instead of default modification time: atime or access or use (-u); ctime or status (-c); also use specified time as sort key if --sort=time (newest first)
e) -l use a long listing format
-a, --all do not ignore entries starting with .
-h, --human-readable with -l and/or -s, print human readable sizes (e.g., 1K 234M 2G)