Changes

:* Understand Explain the purpose of the process for '''planningshe-bang line''' prior to writing contained at the top of a shell script.

:* Understand the purpose of List rules for naming a '''she-bang line''' contained at the top of a shell Bash scriptfile.

:* Setting Explain how to set '''permissions''' for a shell script and properly how to '''execute''' a shell script.

:* Understand and use Explain the purpose of '''environment''' and '''user-defined''''''Bold text''' variables within a shell script.

:* Understand Explain the purpose of '''control flow statements''' used with shell scripts.

:* Use Explain the purpose of the '''test''' command to test various conditions.

:* Use Explain the purpose and usage of the '''if''' logic statement and the '''for''' loop statement within shell scripts.