Another nice trick you can do is to use the character - instead of the input file. This means that wget will read a bunch of URLs from standard input. (Handy for pasting lots of URLs).
Note : A depth of 0 doesn't behave as you might think. It is equivalent to infinite recursion.
Use the accept list switch (-A <comma separated list> or --accept <comma separated list>)
Examples:
--ignore-case -A "*.jpg" will download files with the format <anything>.jpg, <anything>.Jpg, anything.JPG etc.
-A "*photo*" will download all files with a filename that includes the word photo.
-A mpg,avi,wmv will download all files with a mpg,avi or wmv extension.
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