Now that summer is over and your digital camera is full of pictures, how do you get them organized? At the command line of course! The script provided here automatically organizes them into sub-directories by date.
Everybody's seen redirection in bash commands, that's pretty common, but bash also allows you to define redirections when you define functions. This causes the redirections to be evaluated/executed whenever the function is called.
In diff tool speak, a visual diff tool is a GUI application. Meld is such a tool: a tool for displaying differences between files (and directories) and also for merging the differences. Meld is programmed in Python.