A simple example of a Linux script

Calculating the factorial of 10 using a script

Simply explain:

#!/bin/bash describes the Bash shell program that the shell uses. This is a very short sentence.

For i in ' SEQ 1 10 ' can also be written for I in 1 2 3 4 5 6 7 8 9 10

Single quotation marks above the TAB key

Note expr Each option must be separated by a space.

After the shell script is written, add the Execute permission to the script.

Can be seen without permission.

To increase execution permissions:

Execution results (two modes of execution):

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A simple example of a Linux script