sort

The sort command sorts lines of data. The result is shown on the screen.
The basic syntax for calling sort is:
```
 sort file
```
If you do not pass in a file name, it gets its input from standard input.
Some useful flags (there are many many more!):

    -b        ignore leading spaces (blanks).
    -n        sort the data numerically.
    -r        sort the data in reverse order.
    -tchar    specifies the text (field) delimeter. The default is space or tab.
    -u        unique - don't show lines that repeat.
    -kn       sort the data on a specified key field.