Command option Sample:wget --wait

Search command sample in the internet.It is the result.

wget --wait 3 "+url+letter+".htm")    Collection of Bitstream Fonts - www.opendesktop.org : http://www.opendesktop.org/s/Fonts/p/998477/
wget --wait option when using input from a file    download - How to tell wget where to fetch files passed via '--input-file' - Unix & Linux Stack Exchange : http://unix.stackexchange.com/questions/11526/how-to-tell-wget-where-to-fetch-files-passed-via-input-file