In this exercise, we will learn a few more Linux commands. For each
command, please use man to learn what it does and how to
use it correctly. First, change your directory to ~.
1.1 Make a link called data_demo_link
to data_demo folder using ln.
1.2 Print your home directory using
echo.
1.3 Go to data_demo/molecules/, make an
empty file test.pdb with touch.
1.4 Find how many files in
data_demo/data/elements/ using find.
1.5 Compare
data_demo/data/pdb/ethane.pdb and
data_demo/data/pdb/ethanol.pdb with diff.
1.6 Count how many But she string
appears in data_demo/writing/data/LittleWomen.txt with
grep.
1.7 Check the total file size of the
data_demo/data/ folder using du.
1.8 Copy the data_demo/writing/ folder
to data_demo/writing_new/, compress
data_demo/writing_new/ using zip, and
decompress the .zip file with unzip.
1.9 Change the file permissions flags on
writing_new to drwxr-x--- using
chmod.
1.10 Print the last 10 commands you
made using history.