Quiz 1: Linux...ology

What is the symbol used for the root directory in Linux?

• ?

• #

• /

• $

What Linux command would you use to move up one directory?

• cd /

• cd ..

• cd -

• cd ~

How do you list all files and their sizes from a directory?

• ls

• ls -f

• ls -h

• ls -l

How do you find the path to your current directory?

• cmd

• pwd

• awk

• ls

How do you create a nested directory called /a/b/c/d?

• mkdir -p /a/b/c/d

• mkdir /a/b/c/d

• ls -l /a/b/c/d

• rm -r /a/b/c/d

Which one is the absolute path to the directory /bin from /usr?

• ../usr/bin

• ../bin

• ../../usr/bin

• /usr/bin

The directory ~/cats contains 3 files and 2 directories. How do you remove it?

• mkdir ~/cats

• rm ~/cats

• del ~/cats

• rm -r ~/cats

How do you change the name of a directory "cats" into "dogs"?

• mv cats dogs

• rm cats dogs

• mkdir cats dogs

• ls cats dogs

How can you display the first 3 lines of a file 'nums.txt'?

• ls -3 nums.txt

• rm -3 nums.txt

• tail -3 nums.txt

• head -3 nums.txt

How can you combine the content of two text files "t1.txt" and "t2.txt" into a file result.txt?

• cat t1.txt t2.txt > result.txt

• cut t1.txt t2.txt > result.txt

• ls t1.txt t2.txt > result.txt

• pwd t1.txt t2.txt > result.txt