completed sort-uniq-head-tail

Author: TzeMingHo

shell-pipelines/sort-uniq-head-tail/script-03.sh

@@ -8,3 +8,5 @@ set -euo pipefail
 # Basia London 22 9 6
 # Piotr Glasgow 15 2 25 11 8
 # Chandra Birmingham 12 6
+
+sort -k3,3rn ./scores-table.txt | head -n 3

shell-pipelines/sort-uniq-head-tail/script-04.sh

@@ -5,3 +5,5 @@ set -euo pipefail
 # 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 -k3,3rn ./scores-table.txt | head -n 2 | tail -n 1

shell-pipelines/sort-uniq-head-tail/script-05.sh

@@ -6,3 +6,5 @@ set -euo pipefail
 # TODO: Write a command to show a list of all events that have happened, without duplication.
 # The order they're displayed doesn't matter, but we never want to see the same event listed twice.
 # Your output should contain 6 lines.
+
+sort ./events.txt | uniq

shell-pipelines/sort-uniq-head-tail/script-06.sh

@@ -5,3 +5,5 @@ set -euo pipefail
 # 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.
+
+awk '{ print $1 }' ./events.txt | sort | uniq -c

shell-pipelines/sort-uniq-head-tail/script-07.sh

@@ -6,3 +6,5 @@ set -euo pipefail
 # 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 | awk '{ print $3 }' | sort | uniq -c