Linux Command - ls

ls - list files

ls
ls -l
ls -la
ls -ltrh

-l	long listing format
-a	all, don’t ignore hidden files
-A	almost all, ignore . and ..
-t	sort by time, shortest first ( last updated )
-r	reverse sort
-h	human readable size ( show in K, M, G )
-R	recursive, list sub dirs recursively
-s	show size in blocks
-S	Sort by size, largest first
-1	one column but not long listing
-d	show directories, not contents
-i	show inode number
-q	hide control chars
-b	show escapes for nongraphic chars
-B	ignore backups ( files ending with ~ )
-X	sort by extension, alphabetically
-Z	show security context
–color	colorize output