Fetch and RFC and make it printable as a booklet

get_rfc.sh

#!/bin/bash
# Dan Peterson
# Threw out Matt's old stuff and now I just use pdfbook2 to generate the booklet

if test -t 1; then
    YELLOW='\033[1;33m'
    RED='\033[1;31m'
    NC='\033[0m'
fi

EnsureProgramExists()
{
    local prgm=`which $1`
    if [ ! -x "$prgm" ]; then
        >&2 echo -e "${RED}Unable to find the $1 program${NC}"
        exit 2
    fi
}

if [ -z $1 ]; then
echo "Print the resulting PDF 2-sided (landscape), fold it in half, and staple"
echo "the centerfold.  Walla, you've got a handy booklet"
echo "Usage: $0 rfc_number"
exit 0
fi

echo "$1" | grep -q [^[:digit:]]
if [ $? -ne 1 ] ; then
    >&2 echo -e "${RED}You must enter the number of an RFC${NC}"
    exit 2
fi

EnsureProgramExists wget
EnsureProgramExists pdfbook2

#url="http://www.ietf.org/rfc/rfc$1.txt"
url="https://www.ietf.org/rfc/rfc$1.txt.pdf"
outfile="rfc$1.pdf"
bookfile="rfc$1-book.pdf"

wget -O $outfile "$url"
pdfbook2 $outfile

echo -e "\n${YELLOW}PDF: $outfile\nBooklet: $bookfile${NC}"
echo -e "\nPrint double-sided. Flip on the long edge when printing!"