Google IT Support Professional:Operating Systems and You: Becoming a Power User (Week 1) Navigating the System.

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★File and Text Manipulation★

Q1.In Bash, which of the following commands can you use to view the contents of a document. Check all that apply.

1. open
2. cat
3. less
4. dog

You can use the cat and less command to view the contents of a file.

Q2.In a Linux machine, you have the following files:

1. apple.txt
2. banana.jpg
3. chocolate.txt
4. orange.txt

What command can you use to search for the word "fruit" in the text files in the above directory? Check all that apply.

1. grep fruit apple.txt chocolate.txt orange.txt
2. grep fruit *.txt
3. find fruit apple.txt chocolate.txt
4. find fruit apple.txt chocolate.txt orange.txt

You can use the grep command to search files for certain words. You can also use the * wildcard command to filter by a specific pattern.

Q3.In a Linux machine, you have a file named "types_of_fish.txt" and you want to append the word "trout" to the file contents. Which of the following commands can you use?

1. echo trout < types_of_fish.txt
2. echo trout > types_of_fish.txt
3. echo trout >> types_of_fish.txt
4. echo trout 2> types_of_fish.txt

The >> is used as an append redirector.

Q4.In a Linux machine, you want to list through a directory called /home/ben/Documents and search for the word "important" in the filenames in that directory. Which of the following commands can you use?

1. ls /home/ben/Documents | grep important
2. ls /home/ben/Documents >> grep important
3. ls /home/ben/Documents < grep important
4. ls /home/ben/Documents > grep important

You can use the | command to pipe the output of one command into another.

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