London | 26-SDC-July | AYK | Sprint 2 | Jq

jq/script-01.sh

@@ -5,3 +5,6 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the name of the person.
 # Your output should be exactly the string "Selma", but should not contain any quote characters.
+
+cd jq
+jq -r '.name' person.json

jq/script-02.sh

@@ -5,3 +5,5 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the address of the person, all on one line, with a comma between each line.
 # Your output should be exactly the string "35 Fashion Street, London, E1 6PX", but should not contain any quote characters.
+cd  jq
+jq -r '.address | join (", ")' person.json

jq/script-03.sh

@@ -5,3 +5,5 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the name of the person, then a comma, then their profession.
 # Your output should be exactly the string "Selma, Software Engineer", but should not contain any quote characters.
+cd jq 
+jq -r '"\(.name), \(.profession)"' person.json

jq/script-04.sh

@@ -6,3 +6,6 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player, one per line.
 # Your output should contain 6 lines, each with just one word on it.
 # Your output should not contain any quote characters.
+
+cd jq 
+jq -r '.[].name' scores.json

jq/script-05.sh

@@ -5,3 +5,6 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the names of each player, as well as their city.
 # Your output should contain 6 lines, each with two words on it.
+
+cd jq 
+jq -r '.[] | "(\.name),\(.city)"' scores.json;

jq/script-06.sh

@@ -6,3 +6,5 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the score from their first attempt.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 1" with no quotes.
+cd jq 
+jq -r '.[] | "(\(.name), \(.scores[0]))"' scores.json

jq/script-07.sh

@@ -6,3 +6,6 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the score from their last attempt.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 4" with no quotes.
+
+cd jq 
+jq -r '.[] | "(\(.name), \(.scores[-1]))"' scores.json

jq/script-08.sh

@@ -6,3 +6,6 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the number of times they've played the game.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 3" with no quotes.
+
+cd jq 
+jq -r '.[] | "(\(.name), \(.scores| length))"' scores.json

jq/script-09.sh

@@ -6,3 +6,6 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the total scores from all of their games added together.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 15" with no quotes.
+
+cd jq 
+jq -r '.[] | "(\(.name), \(.scores| add))"' scores.json

jq/script-10.sh

@@ -5,3 +5,6 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the total of adding together all players' first scores.
 # Your output should be exactly the number 54.
+
+cd jq 
+jq -r '[.[].scores[0] | add]' scores.json

jq/script-11.sh

@@ -5,3 +5,6 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the total of adding together all scores from all games from all players.
 # Your output should be exactly the number 164.
+
+cd jq 
+jq -r '[.[].scores[]] | add' scores.json

shell-pipelines/sort-uniq-head-tail/script-01.sh

@@ -5,3 +5,6 @@ set -euo pipefail
 # The input for this script is the scores-table.txt file.
 # TODO: Write a command to output scores-table.txt, with lines sorted by the person's name.
 # The first line of your output should be "Ahmed London 1 10 4" (with no quotes). And the third line should be "Chandra Birmingham 12 6".
+
+cd shell-pipelines/sort-uniq-head-tail
+sort scores-table.txt

shell-pipelines/sort-uniq-head-tail/script-02.sh

@@ -5,3 +5,6 @@ set -euo pipefail
 # The input for this script is the scores-table.txt file.
 # TODO: Write a command to output scores-table.txt, with lines sorted by the person's first score, descending.
 # The first line of your output should be "Basia London 22 9 6" (with no quotes).
+
+cd shell-pipelines/sort-uniq-head-tail
+sort -k3,3 -nr scores-table.txt

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

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

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

@@ -5,3 +5,6 @@ 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).
+
+cd shell-pipelines/sort-uniq-head-tail
+sort -k3,3 -nr scores-table.txt | head -n 3| tail -n 1

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

@@ -6,3 +6,6 @@ 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.
+
+cd shell-pipelines/sort-uniq-head-tail
+sort events.txt | uniq

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

@@ -5,3 +5,6 @@ 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.
+
+cd shell-pipelines/sort-uniq-head-tail
+sort events.txt |awk '{print $1}' | uniq -c

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

@@ -6,3 +6,6 @@ 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.
+
+cd shell-pipelines/sort-uniq-head-tail
+tail -n +2 events-with-timestamps.txt | awk '{print $3} | sort | uniq -c

shell-pipelines/tr/script-01.sh

@@ -6,3 +6,6 @@ set -euo pipefail
 # The author got feedback that they're using too many exclamation marks (!).
 #
 # TODO: Write a command to output the contents of text.txt with every exclamation mark (!) replaced with a full-stop (.).
+
+cd shell-pipelines/tr
+tr '!' '.' < text.txt

shell-pipelines/tr/script-02.sh

@@ -7,3 +7,6 @@ set -euo pipefail
 # so every Y should be a Z, and every Z should be a Y!
 #
 # TODO: Write a command to output the contents of text.txt with every Y and Z swapped (both upper and lower case).
+
+cd shell-pipelines/tr
+tr 'YyZz' 'ZzYy' <text.txt