#153 How many words have four consecutive vowels using grep?

The square brackets mean list. The search is for the letter a or e or i or o or u. Then we add the brace brackets at the end enables multipliers. Having just the number 4 in the braces indicates that we are looking for four vowels consecutive row. Use this script for crosswords and Scrabble 🙂

grep -E '[aeiou]{4}' /usr/share/dict/words

Output:

Hawaiian
Hawaiian's
Hawaiians
Iroquoian
Iroquoian's
Kauai
Kauai's
Kilauea
Kilauea's
Louie
Louie's
Montesquieu
Montesquieu's
Quaoar
Quaoar's
Rouault
Rouault's
aqueous
gooier
gooiest
obsequious
obsequiously
obsequiousness
obsequiousness's
onomatopoeia
onomatopoeia's
pharmacopoeia
pharmacopoeia's
pharmacopoeias
plateaued
plateauing
queue
queue's
queued
queues
queuing
sequoia
sequoia's
sequoias

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