Shell Programming and Scripting

you are to write scripts for a customer that would require a system enable the backing up of files and directories. The script should (these names should be used):

1. INITIALISE: Initialise the directory for the backup(called backup and should be in the home directory) and any other associated files and should be run once before running other scripts.

2. BACKUP: backs up a directory and/or files and/or set of directories(using wildcards) E.g. backup test.java ./cfiles *.c++

3. RESTORE: lists files/directories in backup system and restores selected files and/directories

4. DELETE: Deletes a file/directory from the backup

for example,typing restore without a file/directory name lists the content of the backup:

pxxxxxxx:0:/home/pxxxxxxx/mscow/results
pxxxxxxx:1:/home/pxxxxxxx/mscow/delly
pxxxxxxx:2:/home/pxxxxxxx/mscow/tmp
You can then type restore 1 to restore the file delly. Note that if you back up two files with the same name,they should both be saved and you should be able to restore either or both of them.

5. EMPTY: this will just empty the trash can

NB: Initialise just sets up any directories,files,etc that the system needs and should be run once before using the other scripts,you may assume that the user has a bin directory which is on their PATH,the script will be used by ex-windows users and should be designed to operate on the users path(eg $HOME/bin)."

Do not post classroom or homework problems in the main forums. Homework and coursework questions can only be posted in this forum under special homework rules.

Please review the rules, which you agreed to when you registered, if you have not already done so.

More-than-likely, posting homework in the main forums has resulting in a forum infraction. If you did not post homework, please explain the company you work for and the nature of the problem you are working on.

If you did post homework in the main forums, please review the guidelines for posting homework and repost.

Thank You.

The UNIX and Linux Forums.