From c239a469afc37d95badd65a020c1d6492f919a26 Mon Sep 17 00:00:00 2001 From: sarawone Date: Fri, 17 Jul 2026 16:03:02 +0100 Subject: [PATCH 1/3] exercise_sort_uniq_head_tail --- shell-pipelines/sort-uniq-head-tail/script-01.sh | 3 +++ shell-pipelines/sort-uniq-head-tail/script-02.sh | 3 +++ shell-pipelines/sort-uniq-head-tail/script-03.sh | 3 +++ shell-pipelines/sort-uniq-head-tail/script-04.sh | 3 +++ shell-pipelines/sort-uniq-head-tail/script-05.sh | 3 +++ shell-pipelines/sort-uniq-head-tail/script-06.sh | 3 +++ shell-pipelines/sort-uniq-head-tail/script-07.sh | 3 +++ 7 files changed, 21 insertions(+) diff --git a/shell-pipelines/sort-uniq-head-tail/script-01.sh b/shell-pipelines/sort-uniq-head-tail/script-01.sh index 171e1f989..4ed92b37a 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-01.sh +++ b/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 diff --git a/shell-pipelines/sort-uniq-head-tail/script-02.sh b/shell-pipelines/sort-uniq-head-tail/script-02.sh index 29c3c2524..0fe7dfd96 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-02.sh +++ b/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 diff --git a/shell-pipelines/sort-uniq-head-tail/script-03.sh b/shell-pipelines/sort-uniq-head-tail/script-03.sh index bcbaf3420..e65dcf489 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-03.sh +++ b/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 diff --git a/shell-pipelines/sort-uniq-head-tail/script-04.sh b/shell-pipelines/sort-uniq-head-tail/script-04.sh index 65a5cfba8..9b3399043 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-04.sh +++ b/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 \ No newline at end of file diff --git a/shell-pipelines/sort-uniq-head-tail/script-05.sh b/shell-pipelines/sort-uniq-head-tail/script-05.sh index a93cd9f9d..42c1e476b 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-05.sh +++ b/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 \ No newline at end of file diff --git a/shell-pipelines/sort-uniq-head-tail/script-06.sh b/shell-pipelines/sort-uniq-head-tail/script-06.sh index 715c7ae5c..3869682b0 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-06.sh +++ b/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 diff --git a/shell-pipelines/sort-uniq-head-tail/script-07.sh b/shell-pipelines/sort-uniq-head-tail/script-07.sh index 7fd07e1ff..514772168 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-07.sh +++ b/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 From ecfe70ad67240feb6775518bffd3a5996c86b2f6 Mon Sep 17 00:00:00 2001 From: sarawone Date: Fri, 17 Jul 2026 16:04:14 +0100 Subject: [PATCH 2/3] exercise_tr --- shell-pipelines/tr/script-01.sh | 3 +++ shell-pipelines/tr/script-02.sh | 3 +++ 2 files changed, 6 insertions(+) diff --git a/shell-pipelines/tr/script-01.sh b/shell-pipelines/tr/script-01.sh index 8bb0211e9..402ec4561 100755 --- a/shell-pipelines/tr/script-01.sh +++ b/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 diff --git a/shell-pipelines/tr/script-02.sh b/shell-pipelines/tr/script-02.sh index cf3a503a2..808343efa 100755 --- a/shell-pipelines/tr/script-02.sh +++ b/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' Date: Wed, 22 Jul 2026 10:41:10 +0100 Subject: [PATCH 3/3] jq exercise --- jq/script-01.sh | 3 +++ jq/script-02.sh | 2 ++ jq/script-03.sh | 2 ++ jq/script-04.sh | 3 +++ jq/script-05.sh | 3 +++ jq/script-06.sh | 2 ++ jq/script-07.sh | 3 +++ jq/script-08.sh | 3 +++ jq/script-09.sh | 3 +++ jq/script-10.sh | 3 +++ jq/script-11.sh | 3 +++ 11 files changed, 30 insertions(+) diff --git a/jq/script-01.sh b/jq/script-01.sh index 95827f688..ddcbfdb09 100755 --- a/jq/script-01.sh +++ b/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 diff --git a/jq/script-02.sh b/jq/script-02.sh index 21544d67b..5d92a6c8b 100755 --- a/jq/script-02.sh +++ b/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 diff --git a/jq/script-03.sh b/jq/script-03.sh index 3566f03ba..619be8a83 100755 --- a/jq/script-03.sh +++ b/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 diff --git a/jq/script-04.sh b/jq/script-04.sh index 015997e18..ee1e6f433 100755 --- a/jq/script-04.sh +++ b/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 diff --git a/jq/script-05.sh b/jq/script-05.sh index 993fc9ee3..b311812f6 100755 --- a/jq/script-05.sh +++ b/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; diff --git a/jq/script-06.sh b/jq/script-06.sh index 8b6e74c52..5fe9c9316 100755 --- a/jq/script-06.sh +++ b/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 \ No newline at end of file diff --git a/jq/script-07.sh b/jq/script-07.sh index d43f93d1b..e5fce7c71 100755 --- a/jq/script-07.sh +++ b/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 diff --git a/jq/script-08.sh b/jq/script-08.sh index 6671fd1ba..97d3eca8c 100755 --- a/jq/script-08.sh +++ b/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 diff --git a/jq/script-09.sh b/jq/script-09.sh index c2536a536..bbb5d24ea 100755 --- a/jq/script-09.sh +++ b/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 \ No newline at end of file diff --git a/jq/script-10.sh b/jq/script-10.sh index 8e9d75f07..be3605104 100755 --- a/jq/script-10.sh +++ b/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 diff --git a/jq/script-11.sh b/jq/script-11.sh index d2337a6b2..8a821defe 100755 --- a/jq/script-11.sh +++ b/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