CreateRecursiveDir Create directory structure recursively, if they do not exist @parameters completePath - Complete path of directory which needs to be created @returns Error - Errors if any.

DeleteFiles Delete all the files and dirs recursively in specified directory @parameters path - Directory whose contents need to be deleted wildcard - patterns to match the filenames (e.g.

DeleteTmpDir Delete the temporary directory @parameters outputDir - Directory which need to be deleted @returns Error - Errors if any.

GetTmpDir Create a temporrary directory to extract the conetents of container image @parameters imageName - Name of the container image @returns String - Complete path of the based directory where image will be extracted, empty string if error Error - Errors if any.

IsSymLink Check if input is a symLink, not normal file/dir path - Pathname which needs to be checked for symbolic link @returns bool - Return true if input is a symLink.

NewMatchFile Creates a new Matchfile data structure.

UpdateDirsPermissionsRW Update permissions for dirs in container images, so that they can be properly deleted.