Why file I/O is core to scripting in Bash Scripting - Quick Recap

Recall & Review

beginner

What does File I/O stand for in scripting?

File I/O stands for File Input/Output. It means reading data from files (input) and writing data to files (output).

beginner

Why is file I/O important in bash scripting?

File I/O lets scripts save data, read settings, and share information with other programs or users. It makes scripts useful and flexible.

beginner

Give an example of a simple bash command to read a file.

The command cat filename.txt reads and shows the content of filename.txt on the screen.

beginner

How can a bash script write output to a file?

Use the > symbol to redirect output. For example, echo "Hello" > file.txt writes "Hello" into file.txt.

beginner

What real-life task can file I/O help automate in scripting?

File I/O can help automate tasks like saving logs, processing data files, or backing up important information automatically.

What symbol is used in bash to write output to a file?

A >

B <

C |

D &

The > symbol redirects output to a file, creating or overwriting it.

Which command reads and displays the content of a file in bash?

A echo

B ls

C cat

D rm

The cat command reads and shows the content of a file.

Why do scripts use file I/O?

A To run faster

B To change the screen color

C To connect to the internet

D To interact with files for input and output

File I/O allows scripts to read from and write to files, which is essential for many tasks.

What happens if you use > to write to a file that already exists?

A It appends to the file

B It overwrites the file

C It deletes the file

D It renames the file

Using > overwrites the existing file with new content.

Which of these is NOT a use of file I/O in scripting?

A Changing keyboard layout

B Reading configuration

C Backing up data

D Saving logs

Changing keyboard layout is not related to file input/output.

Explain why file input/output is essential in bash scripting and give two examples of its use.

Think about how scripts get information and save results.

Describe how you would use bash commands to read from a file and write output to another file.

Focus on simple commands and redirection symbols.