12-14-2009
thank you for the response but this going to be harder than i thought so this is the details in full:
a software company has established standards with regards to the naming and organisation of files in its linux based filestore. in particular, users are directed to store files of a particular type in the same directory, for example, users sre instructed to store all word processor files in a directory named wp. for the purpose of this exercise therea re 3 types of file available - wordprocessing, spreadsheet and picture files.
up until now house keeping practices have been a bit haphazard and it has been upto the individual user as to the manner in which they organise back up of files, if indeed this is done at all. therefore the company wishes to to develop a new utility which will aid the users in backing up and restoring files in their own personal directory area. in doing this development, it should be recognised that script files are treated like any other i.e. they should be stored in a directory called scriptfiles.
only one utility is to be developed
the utility will give the user the option to back up or restore a set of files
the utility will give the user the ability to specify which type of file is to be used in a particular back up or restore session.
the utility should be robust with respect to files and directories and the possible overwriting of files; the utility should provide help to allow the novice user to make use of the utility.
hopefully someone can understand what is required (because i dont) and hopefully when i do start college it wont be as hard as this for a beginner
cheers
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LEARN ABOUT OSF1
mktrashcan
mktrashcan(1) General Commands Manual mktrashcan(1)
NAME
mktrashcan, rmtrashcan, shtrashcan - Attaches, detaches, or shows a trashcan directory
SYNOPSIS
/usr/sbin/mktrashcan trashcan directory...
/usr/sbin/rmtrashcan directory...
/usr/sbin/shtrashcan directory...
OPERANDS
Specifies the directory that contains files that were deleted from attached directories. Whenever you delete a file in the specified
directory, the file system automatically moves the file to the trashcan directory. Specifies the directory that you attach to a trashcan
directory.
DESCRIPTION
The trashcan utilities (mktrashcan and rmtrashcan) enable you to attach or detach an existing directory, which you specify as a trashcan
directory, to any number of directories within the same fileset.
A trashcan directory stores the files that are deleted with the unlink system call. For instance, you can use the mktrashcan utility to
attach a trashcan directory called /usr/trashcan to one or more directories; thereafter, when you delete a file from one of the attached
directories, the file system moves the file to the /usr/trashcan directory. Note that when more than one directory shares attachment to a
trashcan directory, files with the same file name can overwrite each other in the trashcan directory.
If you mistakenly delete a file, use the mv command to return the file from the /usr/trashcan directory to its original directory.
When you enter shtrashcan at the system prompt, the system shows the trashcan directory, if one exists, for the directory you specified.
It is important that trashcan directories have correct access permissions. If the permissions are too restrictive, then it may be impossi-
ble to remove files from the directories that are attached to the trashcan directory. In general, all users and groups that expect to use
the trashcan directory need write permission to the directory. If unexpected "permission denied" errors occur when deleting files that are
in a directory attached to a trashcan directory, use the chmod command to change the permissions on the trashcan directory.
RESTRICTIONS
The directory and trashcan directories must be in the same fileset; however, you can attach the trashcan directory to any directory within
the fileset.
EXAMPLES
The following example creates and attaches a trashcan directory, /usr/trashcan, to two directories, /usr/ray and /usr/projects/sql/test,
which are in the same fileset. The chmod command adds write permission for all users and groups on the new trashcan directory. % mkdir
/usr/trashcan % chmod a+w /usr/trashcan % mktrashcan /usr/trashcan /usr/ray /usr/projects/sql/test To attach the trashcan directory,
/usr/trashcan, to all subdirectories in the /usr directory, enter: % mktrashcan /usr/trashcan /usr/*
New subdirectories that you add beneath the /usr directory are not attached to the trashcan directory until you attach them. Also,
the mktrashcan utility distinguishes between directories and files, attaching only directories to the trashcan directory.
Note that an attached directory produces an EDUPLICATE_DIRS (-1165) error when /usr/trashcan is itself in the directory path you
attach to (as in the previous example). You can ignore this error message.
SEE ALSO
advfs(4), mkfset(8), showfsets(8)
mktrashcan(1)