bash
source <(curl -sL start.rubegoldbash.com)

# Use share to submit your score:
rubeshare
# Use exit to stop RubeGoldBash
exit

# Retrieve the weather for your location
curl -s ip.appspot.com | xargs -n 1 curl -s "freegeoip.net/csv/$1" | cut -d ',' -f '9 10' | sed 's/,/\&lon=/g' | xargs -n 1 echo "http://api.openweathermap.org/data/2.5/weather?mode=html&lat=$1" | sed 's/ //g' | xargs -n 1 curl -s $1 | tee weather.html
# Same request, with display to the prompt using lynx
curl -s ip.appspot.com | xargs -n 1 curl -s "freegeoip.net/csv/$1" | cut -d ',' -f '9 10' | sed 's/,/\&lon=/g' | xargs -n 1 echo "http://api.openweathermap.org/data/2.5/weather?mode=html&lat=$1" | sed 's/ //g' | xargs -n 1 curl -s $1 | lynx -stdin -dump

# Retrieve the answer to "When will it be done?" (scraping) and make a nice voice read it for you.
lynx --dump whenwillitbedone.trgdy.com | head -n 8 | tail -n 4 | tr "\\n" ' ' | cut -d '[' -f 1 | sed 's/   //g' | sed "s/'/ /g" | perl -pe 's/([^a-zA-Z0-9_.!~*()'\''-])/sprintf("%%%02X", ord($1))/ge' | xargs -n 1 echo "http://translate.google.com/translate_tts?ie=UTF-8&tl=en&q=$1" | sed 's/ //g' | xargs -n 1 curl -s "$1" > whenwillitbedone.mp3
# File can be read with
afplay whenwillitbedone.mp3

# Count the number of folders in the current working directory.
ls -l | cut -c 1 | grep d | wc -l

# Find the longest name
cat /usr/share/dict/propernames | grep 'S' | awk '{print length($1), $1}' | sort -n | tail -n 1 | cut -d ' ' -f 2
# And spell it
cat /usr/share/dict/propernames | grep 'S' | awk '{print length($1), $1}' | sort -n | tail -n 1 | cut -d ' ' -f 2 | say

# DNS IP lookup
dig +short myip.opendns.com @resolver1.opendns.com

# WS IP lookup
curl ip.appspot.com
curl ifconfig.me/ip
curl ipinfo.io/ip

# WS location lookup
curl freegeoip.net/csv/116.193.147.34
curl ipinfo.io/geo

# Current weather (it wouldn't be Rube Goldberg-y if it was useful)
curl "http://api.openweathermap.org/data/2.5/weather?lat=-41.00&lon=174.00&mode=html"

# Sound
curl "http://translate.google.com/translate_tts?ie=UTF-8&tl=en&q=hello+world" > test.mp3
afplay test.mp3

# Dict
curl dict://dict.org/d:test

# Scraping
curl whenwillitbedone.trgdy.com | grep '<p>'

## Cal
cal | sed "s/.*/ & /;s/ $(date +%d) / [] /"
cal | sed "s/.*/ & /;s/ $(date +%d) / $(printf '\e[0;31m[]\e[0m') /"

## Cool one-liners
perl -le '$l=80;$l2="!" x $l;substr+($l2^=$l2),$l/2,1,"\xFF";{local $_=$l2;y/\0\xFF/ ^/;print;($lf,$rt)=map{substr $l2 x 2,$_%$l,$l;}1,-1;$l2=$lf^$rt;select undef,undef,undef,.1;redo}'
echo -e "\e[32m"; while :; do for i in {1..16}; do r="$(($RANDOM % 2))"; if [[ $(($RANDOM % 5)) == 1 ]]; then if [[ $(($RANDOM % 4)) == 1 ]]; then v+="\e[1m $r   "; else v+="\e[2m $r   "; fi; else v+="     "; fi; done; echo -e "$v"; v=""; done
yes "$(seq 232 255;seq 254 -1 233)" | while read i; do printf "\x1b[48;5;${i}m\n"; sleep .01; done

## Building blocks to use
last
cat /dev/urandom | hexdump -C | grep "ca fe"
cat /usr/share/dict/propernames
cat /usr/share/dict/connectives
whatis