documentation

#!/bin/bash

link='ftp://ftp.cdc.gov/pub/Health_Statistics/NCHS/Dataset_Documentation/DVS/natality/'

# Pre-1978 is treated separately

wget ${link}Nat1968doc.pdf
wget ${link}Nat1969-71doc.pdf
wget ${link}Nat1972-77doc.pdf

# Post-1978 can be automatized

prefix='Nat'
suffix='doc.pdf'

for i in {1978..2004}
do
  wget $link$prefix$i$suffix
done

prefix='UserGuide'
suffix='.pdf'

for i in {2005..2013}
do
  wget $link$prefix$i$suffix
done