copytemp\pp \system\filetools\commands py added line breaks and tabs in few of these output lines to make them fit on this pagebut the report is simple to understand in tree with , files and directorieswe found five differences--the three files we changed by editsand the two directories we threw out of sync with the three removal commands verifying backups so how does this script placate cd backup paranoiato double-check my cd writer' worki run command such as the following can also use command like this to find out what has been changed since the last backup againsince the cd is " :on my machine when plugged ini provide path rooted thereuse root such as /devcdrom or /mnt/cdrom on linuxc:\pp \system\filetoolspython diffall py examples :\pp \examples diff :\pp \system\filetoolsmore diff output omitted the cd spinsthe script comparesand summary of differences appears at the end of the report for an example of full difference reportsee the file difftxt files in the book' examples distribution package and to be really surei run the following global comparison command to verify the entire book development tree backed up to memory stick (which works just like cd in terms of the filesystem) :\pp \system\filetoolsdiffall py :\writing-backups\feb- - \dev :\users\mark\stuff\books\ \pp \dev diff txt :\pp \system\filetoolsmore diff txt comparing :\writing-backups\feb- - \dev to :\users\mark\stuff\books\ \pp \dev directory lists are identical comparing contents ch doc differs ch doc matches ch doc differs ch doc matches ch doc differs ch doc matches ch doc differs more output omitted comparing :\writing-backups\feb- - \dev\examples\pp \system\filetools to :files unique to :\users\mark\stuff\books\ \pp \dev\examples\pp \system\filetools copytemp cpall py diff txt diff txt diffall py diffs txt dirdiff py dirdiff pyc complete system programs