Shell Word Expansion

This is how you perform word expansions using wordexp() system interface:

alexo@kuha:~/wordexp$ make
        cc    -o wordexp wordexp.c
        ./wordexp
echo hello world
0: 'echo'
1: 'hello'
2: 'world'
"\$HOME = $HOME" '$PWD'\ =\ $PWD
0: '$HOME = /home/alexo'
1: '$PWD = /home/alexo/wordexp'
alexo@kuha:~/wordexp$

https://gist.github.com/4492253

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