Download script for the SICP videos

download-sicp-videos.sh

#!/bin/bash
set -e

#DOWNLOAD_COMMAND='curl -s -S -C - -L -O'
DOWNLOAD_COMMAND='wget --quiet --continue'
SIMULTANEOUS_DOWNLOADS=3

one-word-per-line() {
    xargs -n 1 echo $@
}

urlify() {
    awk '{ print "http://archive.org/download/MIT_Structure_of_Computer_Programs_1986/lec" $1 ".mp4" }'
}

special-cases-urlify() {
    awk '{ print "http://archive.org/download/MIT_Structure_of_Computer_Programs_1986/Lec" $1 ".mp4" }'
}

list() {
    echo {1..9}a {1..5}b {7..10}b | one-word-per-line | sort -n | urlify
    echo 6b 10a | one-word-per-line | special-cases-urlify
}

download() {
  xargs -n 1 -P $SIMULTANEOUS_DOWNLOADS $DOWNLOAD_COMMAND $1
}

list | download

Crap. It does not work with lecture 10a (That one is apparently named Lec10a.mp4 and not lec10a.mp4...). The same goes for Lec6b.mp4. Now the script isn't as elegant... =/