Homework & Coursework Questions

#!/bin/bash

#########################################################################
# DO NOTE REMOVE OR CHANGE THIS BLOCK WHILE YOU COMPLETE THE ASSIGNMENT
# ASSIGNMENTS COMPLETED WITHOUT THIS BLOCK INTACT WILL NOT BE GRADED
#
# ULI101 - WINTER 2012
# ASSIGNMENT 2 BY: John Doughtski
#
#
# PLEASE REMEMBER THAT SHARING YOUR SOLUTION WITH ANOTHER STUDENT
# IN PART OR IN ENTIRETY IS A VIOLATION OF THE ACADEMIC POLICY
#
# BIGBROTHER COMMAND VERIFIES THAT YOU COMPLETE THE WORK INDEPENDENTLY
# BY RECORDING YOUR PROGRESS AND COLLECTING STATISTICAL DATA
#
# IF YOU DELETE OR DAMAGE THE COMMAND BELOW BY ACCIDENT, YOU CAN RETRIEVE
# THE ORIGINAL BY ISSUING THE ASSIGNMENT START COMMAND AGAIN
bigbrother e5679c3fd97e3d34182b727a9241a3bc4b9db131 momo
#########################################################################

# ASSIGNMENT 2 INSTRUCTIONS, PERSONALIZED FOR jdoughtski

# Create a BASH shell script called momo (My Own Music Organizer)
# in ~/uli101.a2/ directory according to the following specifications:"

# Your script will be used to organize a collection of MP3 files.
# Files to be processed are expected to reside in a single directory
# (no sub-directories).
# Your script, must create subdirectories for each artist and
# create symbolic links to each song in appropriate directories.

# The script usage will be as follows:
# momo source_directory [destination directory]

# If the destination directory is not provided, the present working directory
# is the destination.
# The name of the file/link will be based on album and song name
# in the following format: Album _ SongTitle.mp3

# Additional information:
# - All song metadata will be based on information in ID3v1 tags
# - Assume that all .mp3 files in the source directory have a valid ID3v1 tag
#   (ID3v1 details can be found on-line
# - .mp3 extensions can have any combination of upper- and lower-case letters
# - Assume that you have read permission for the source directory
#   and write permission for destination
# - Ignore files in the source directory that do not have the .mp3 extension
# - Display an error message and exit with status 2 if no parameters are given
# - Display an error message and exit with status 3 if source is not a directory
# - Display an error message and exit with status 4 if destination
#   does not exist or is not a directory

# TIP: Keep a secure backup of your script outside of other users' access.

# Practice files can be found on matrix in ~uli101/public/songs[1-5]
# directories.  Although they are not actual mp3 files, they contain
# valid ID3v1 tags.

# In addition to creating a directory/file structure, your script must create
# a valid HTML 5 report file containing the output of the tree command,
# showing the above structure. The report will also show a footer section
# showing the source directory path, date/time when report was created
# and number of artist and songs organized.

# Although it is not a requirement, feel free to set colours, fonts and other
# visual attributes of your report.


# Place the report file in the output directory and call it: .index.html
# TIP: Have a dedicated testing directory for output and make a symbolic link
# in your ~/public_html directory to your report file in there.
# This way it will be easy to view and validate the report using your browser.

# Your script will produce a single line of output to the shell
# (other than possible error messages), containing two numbers, separated by
# a single space: number of artists processed and number of songs processed.

# Check your progress using the following command: uli101.a2.check
# Submit your completed assignment using the following command: uli101.a2.submit

# PLEASE NOTE THAT PLAGIARISM CASES WILL BE HANDLED ACCORDING TO THE ACADEMIC
# POLICY. YOUR SCRIPT MUST BE WRITTEN WITHOUT HELP FROM OTHERS AND YOU ARE NOT
# ALLOWED TO ACCESS OTHER STUDENTS' ASSIGNMENTS
# DO NOT SHARE YOUR SOLUTION. ASK ONLY YOUR PROFESSOR FOR HELP.

### TO DO: Check if at least one parameter is supplied, exit on error
if [ $# ]
then
        exit
fi

### TO DO: Check if first parameter is a directory, exit on error

# Set the destination to default (pwd) if no destination is provided
if [ $# -lt 2 ]
then
        set "$1" .
fi

### TO DO: Check if destination exists and is a directory, exit on error

for path in $(### TO DO: Get the list of mp3 files in the source directory)
do
        # Extract the ID3 TAG from file
        tag=$(tail -c 128 $path)

        # Extract the song name and trim space padding
        song_name=$(echo "$tag" | cut -c 4-33 | sed -r 's/ +$//')

        ### TO DO: Extract the artist and album, trim both
        ### TO DO: Create a directory for artist in the destination directory
        ### (if not already there)
        ### TO DO: Create a symbolic link to the song in the artist's directory
done

### TO DO: Finish the output line to the terminal
echo

cat << TOP > $2/### TO DO: Set the report file name here
<!DOCTYPE html>
<html>
<head>
        <title>ID3 Report Page</title>
</head>
<body>
        <h2>ID3 Report Page</h2>
TOP

### TO DO: Display the tree for the artists/songs directory structure

### TO DO: Add the path to the source directory to the report
### TO DO: Add current date/time to the report
### TO DO: Add to the report how many artists and songs were processed

echo "</body></html>" >> $2/### TO DO: Set the report file name here

!#/bin/bash

momo source_directory [destination directory]

source="/home/uli101/public/songs1"
destination="/home/jdoughski/uli101.a2"

#Check if at least 1 parameter is supplied, exit on error
if [ $# -lt 1 ]
then
        echo "No parameters found, add at least 1 parameter"
        exit 2
fi

# Make sure first parameter(source) is a directory, exit on error
if [ ! -d "$0" ]
then
        echo "First paramer must be a directory"
        exit 3
fi

# Check if destination exists and is a directory, exit on error

### TO DO: Check if destination exists and is a directory, exit on error

for path in $(### TO DO: Get the list of mp3 files in the source directory)

for path in $(find "${source}" -follow -type f -name "*.mp3" -print)