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Assume you are at your home directory: Write the commands: Create a directory DR1 Change to...

Assume you are at your home directory: Write the commands:

Create a directory DR1
Change to DR1
Create DR2 in DR1
Change to DR2
Also answer the following: What will each command do :
   5. enter cd .
   6. enter   cd ..
   7. enter    cd

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Answer #1

1) Create a directory DR1

mkdir DR1

2) Change to DR1

cd DR1/

3) Create DR2 in DR1 (assuming we are in DR1)

mkdir DR2

Or we can use option -p to ensure that parent directory exists, such as

mkdir -p DR1/DR2

4) Change to DR2

cd DR2/

5) cd .

. Represents current directory, so this will have no effect, we will remain in the present directory

6) cd ..

.. represents a directory which is one level up the current directory. So, suppose if you are in DR2 currently, this will take you back to DR1

7) cd -

This again means, go back one directory similar to above command cd ..

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