generated from mwc/lab_pipes
45 lines
2.1 KiB
Markdown
45 lines
2.1 KiB
Markdown
# Exercises
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Answer the following questions (or at least as many as you can figure out) in this document.
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For all the questions, use the 100k words. Give your answer for each exercise, and
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show the command you used to get it. Each question can be answered using a single Terminal
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command, though you might need to use a number of pipes.
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If you want to be really stylish, put your code inside of backticks like this:
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`cat words_100k.txt | length | put 10 | equal | count`
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## 1. What is the longest word? antidisestablishmentarianism
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# $ cat words_100k.txt | length | order | tail -n 1 | pluck 1
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## 2. How many words have two u's in a row? 16
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# $ cat words_100k.txt | match "uu" | count
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## 3. How many words have the word "cat" in them? 893
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# $ cat words_100k.txt | match "cat" | count
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## 4. How many words have all five vowels (aeiou)? 812
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# $ cat words_100k.txt | match "a" | match "e" | match "i" | match "o" | match "u" | count
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## 5. Which words have two e's in a row, two o's in a row, and two k's in a row? (they don't have to be in that order)
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# bookkeeper
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# bookkeepers
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# bookkeeping
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# $ cat words_100k.txt | match "ee" | match "oo" | match "kk"
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## 6. How many words have sixteen or more letters? 696
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# $ cat words_100k.txt | length | order | put 15 | lessthan 0 1 | count
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## 7. What's the most frequent 10-letter word? government
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# $ cat words_100k.txt | length | put 10 | equal 0 1 | pluck 2 | frequency | order -r | head -n 1 | pluck 1
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## 8. What's the longest word which doesn't have any repeated letters? unproblematic
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# $ cat words_100k.txt | length | unique 1 | length | equal 0 2 | pluck 3 | length | order -r | head -n 1 | pluck 1
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## 9. What's the longest word which only uses four different letters? senselessness
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# $ cat words_100k.txt | length | unique 1 | length | put 4 | equal 0 1 | pluck 4 | length | order -r | head -n 1 | pluck 1
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## 10. If you rearrange (all) the letters in "sidebar," what other words can you create? braised seabird
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# $ cat words_100k.txt | length | put 7 | equal 0 1 | pluck 2 | match "s" | match "i" | match "d" | match "e" | match "b" | match "a" | match "r"
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