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cd                    # make sure you're in your Home directory
mkdir tmp             # create a new directory called "tmp" and change into it
cd ./tmp              # the "./" syntax is optional; means relative to current directory
touch f1.txt          # create empty file called "f1.txt"
ls -l >> f1.txt       # add some text by redirecting (appending) output from ls
mv f1.txt f2.txt      # rename the "f1.txt" file to "f2.txt"
cp f2.txt f3.txt      # copy "f2.txt" to a new file called "f3.txt" in this directory

mkdir dir2            # make a new "dir2" sub-directory
mv *.txt dir2/        # move the "f2.txt" and "f3.txt" to the "dir2" sub-directory
rmcp fdir2/*.txt     .        # deletecopy all the f*.txt files in the current "dir2" directory to this directory  cp
rm dir2/f*.txt .            # copydelete all the f*.txt files in the "dir2" directory to thiscurrent directory

cp -r dir2/ dir3/     # copy the "dir2" directory and its contents to a new "dir3" directory
rm dir3/f3.txt        # delete the "f3.txt" file from the "dir3" directory
rm -rf dir2           # delete the "dir2" sub-directory and its contents