Bash: PDF page extractor

pdfpextr.sh

#Courtesy: http://www.linuxjournal.com/content/tech-tip-extract-pages-pdf
#Add this to your .bashrc

function pdfpextr()
{
    # this function uses 3 arguments:
    #     $1 is the first page of the range to extract
    #     $2 is the last page of the range to extract
    #     $3 is the input file
    #     output file will be named "inputfile_pXX-pYY.pdf"
    gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dSAFER \
       -dFirstPage=${2} \
       -dLastPage=${3} \
       -sOutputFile=${1%.pdf}_p${2}-p${3}.pdf \
       ${1}
}