London | 26-SDC-Mar | Mariia Serhiienko | Sprint 2 | Shell pipelines#440
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Konvaly wants to merge 3 commits into
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London | 26-SDC-Mar | Mariia Serhiienko | Sprint 2 | Shell pipelines#440Konvaly wants to merge 3 commits into
Konvaly wants to merge 3 commits into
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Konvaly
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cjyuan
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May 12, 2026
| # The input for this script is the scores-table.txt file. | ||
| # TODO: Write a command to output scores-table.txt, with shows the line for the player whose first score was the second highest. | ||
| # Your output should be: "Piotr Glasgow 15 2 25 11 8" (without quotes). | ||
| sort -k3 -rn scores-table.txt | head -2 | tail -1 No newline at end of file |
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Note:
I was curious and asked AI's which of the following ways of using head and tail is preferred:
head -2 | tail -1head -n 2 | tail -n 1
They suggested the 2nd syntax for compatibility and readability reasons.
| # The input for this script is the events.txt file. | ||
| # TODO: Write a command to show how many times anyone has entered and exited. | ||
| # It should be clear from your script's output that there have been 5 Entry events and 4 Exit events. | ||
| sort events.txt | uniq -c | sort -k2 No newline at end of file |
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The output produced by your command does not quite match the expected output, which is in the form:
5 Entry
4 Exit
| # TODO: Write a command to show how many times anyone has entered and exited. | ||
| # It should be clear from your script's output that there have been 5 Entry events and 4 Exit events. | ||
| # The word "Event" should not appear in your script's output. | ||
| tail -n +2 events-with-timestamps.txt | cut -d' ' -f3 | sort | uniq -c No newline at end of file |
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`cut -d' ' -f3 works only if the fields on each line is separated by EXACTLY one space.
The fields in the given file are separated by a tab key, so the command won't work.
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Learners, PR Template
Self checklist
Changelist
Completed tasks with commands ls-grep-sort-uniq-grep-tail-tr