mkdir 20118025
cd 20118025
mkdir documents documents/results scripts
cd documents/
touch file1.doc file2.doc file3.doc file4.doc
cd ../scripts/
touch script.sh
cd ..
chmod 771 scripts/* scripts
cd results/
touch count
cd ..
cd scripts/
vi script.sh
#!/bin/bash
# Count the number of files in the documents directory
num_files=$(ls ../documents | wc -l)

# Write the result to a file named count in the results directory
echo $num_files > ../documents/results/count

# List all directories in the documents folder and save the result in a file
#!/bin/bash
cd ../documents/results
cd ..
ls -d */ > ./results/files

#List all files with .png extension
#!/bin/bash
cd ../results
touch test
cd ..
ls -l img/ | egrep '\.png$' > results/test