terminal dictionary

List the definition of a random word from a vocabulary file on terminal startup.

1. First install terminal dictionary (sdcv):

$ sudo apt-get install sdcv

2. Download dictionary files of choice from:
http://abloz.com/huzheng/stardict-dic/dict.org/

3. Install dictionary:

sudo mkdir -p /usr/share/stardict/dic/
sudo tar -xvjf dictionary.tar.bz2 -C /usr/share/stardict/dic

4. Create a script to read random word from vocabulary file (vocab.txt, vocabularies are line separated) and pass to sdcv:
vocab.sh

#!/bin/bash
vocabFile=~/Documents/vocab.txt
if [ ! -f $vocabFile ]; then
    echo "vocabulary file not found!"
    exit
fi
lineCount=$(more $vocabFile | wc -l)
rand="$((($RANDOM % lineCount) + 1))p"

vocab=$(sed -n $rand $vocabFile)
sdcv $vocab

5. execute script of terminal startup:

$ echo vocab.sh >> ~/.bashrc