ls has some interesting format which is very useful. Here are some arguments which you can use. For example, I like
$ ls - ltF
| -a –all | All files include those with . |
| -l | Display results in long format |
| -r –reverse | Reverse order while sorting |
| -S | Sort results by file size |
| -t | Sort by modification time. |
| -F –classify | Append an indicator character to the end of each listed name |
References:
- The Linux Command Line (by No Starch Press)
The Linux Cluster 