shuf: To shuffle the contents of a file

The command shuf can be used to shuffle the lines of a file passed to it as input.
Example if we have a file,temp, with the following contents

temp:

Line1 Line2 Line3 Line4 Line5 Line6 Line7 Line8

We can shuffle the lines of the file randomly using shuf.

$ shuf temp Line8 Line2 Line7 Line1 Line3 Line4 Line5 Line6

We can store the output in a new file using the -o option i.e

shuf -o temp1 temp

The output would be written to file temp1.
We can also create a random series of numbers using shuf, by using passing the options -i.

$ shuf -i 0-10 10 1 4 2 8 9 7 3 0 6 5

If we want all the numbers in one line and not in different lines we can add the options "-z"

$ shuf -i 0-10 100236948571