From 0b17a9b183300bb3403a386526442f92adeaae2c Mon Sep 17 00:00:00 2001 From: JanefrancessC Date: Thu, 19 Mar 2026 10:53:52 +0000 Subject: [PATCH 1/3] ls-grep done --- shell-pipelines/ls-grep/script-01.sh | 1 + shell-pipelines/ls-grep/script-02.sh | 1 + shell-pipelines/ls-grep/script-03.sh | 1 + shell-pipelines/ls-grep/script-04.sh | 1 + 4 files changed, 4 insertions(+) diff --git a/shell-pipelines/ls-grep/script-01.sh b/shell-pipelines/ls-grep/script-01.sh index 8c7d968a..5ddf6c36 100755 --- a/shell-pipelines/ls-grep/script-01.sh +++ b/shell-pipelines/ls-grep/script-01.sh @@ -4,3 +4,4 @@ set -euo pipefail # TODO: Write a command to output the names of the files in the sample-files directory whose name contains at least one upper case letter. # Your output should contain 11 files. +ls ./sample-files/ | grep '[A-Z]' \ No newline at end of file diff --git a/shell-pipelines/ls-grep/script-02.sh b/shell-pipelines/ls-grep/script-02.sh index 16f5f71d..28fe95c9 100755 --- a/shell-pipelines/ls-grep/script-02.sh +++ b/shell-pipelines/ls-grep/script-02.sh @@ -4,3 +4,4 @@ set -euo pipefail # TODO: Write a command to output the names of the files in the sample-files directory whose name starts with an upper case letter. # Your output should contain 10 files. +ls ./sample-files | grep '^[A-Z]' \ No newline at end of file diff --git a/shell-pipelines/ls-grep/script-03.sh b/shell-pipelines/ls-grep/script-03.sh index a302ab03..dbd1c809 100755 --- a/shell-pipelines/ls-grep/script-03.sh +++ b/shell-pipelines/ls-grep/script-03.sh @@ -4,3 +4,4 @@ set -euo pipefail # TODO: Write a command to output the names of the files in the sample-files directory whose name starts with an upper case letter and doesn't contain any other upper case letters. # Your output should contain 7 files. +ls ./sample-files/ | grep '^[A-Z][^A-Z]*$' \ No newline at end of file diff --git a/shell-pipelines/ls-grep/script-04.sh b/shell-pipelines/ls-grep/script-04.sh index c000b7e3..ba570449 100755 --- a/shell-pipelines/ls-grep/script-04.sh +++ b/shell-pipelines/ls-grep/script-04.sh @@ -4,3 +4,4 @@ set -euo pipefail # TODO: Write a command to count the number of files in the sample-files directory whose name starts with an upper case letter and doesn't contain any other upper case letters. # Your output should be the number 7. +ls ./sample-files/ | grep -c '^[A-Z][^A-Z]*$' \ No newline at end of file From c517c14dab29acd6e690611fe865ec8eac065fe1 Mon Sep 17 00:00:00 2001 From: JanefrancessC Date: Thu, 19 Mar 2026 18:39:18 +0000 Subject: [PATCH 2/3] sort-uniq-head-tail done --- shell-pipelines/sort-uniq-head-tail/script-01.sh | 1 + shell-pipelines/sort-uniq-head-tail/script-02.sh | 1 + shell-pipelines/sort-uniq-head-tail/script-03.sh | 2 ++ shell-pipelines/sort-uniq-head-tail/script-04.sh | 1 + shell-pipelines/sort-uniq-head-tail/script-05.sh | 1 + shell-pipelines/sort-uniq-head-tail/script-06.sh | 1 + shell-pipelines/sort-uniq-head-tail/script-07.sh | 1 + 7 files changed, 8 insertions(+) diff --git a/shell-pipelines/sort-uniq-head-tail/script-01.sh b/shell-pipelines/sort-uniq-head-tail/script-01.sh index 171e1f98..d14a741a 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-01.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-01.sh @@ -5,3 +5,4 @@ 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". +sort ./scores-table.txt \ No newline at end of file diff --git a/shell-pipelines/sort-uniq-head-tail/script-02.sh b/shell-pipelines/sort-uniq-head-tail/script-02.sh index 29c3c252..1bb8f8d3 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-02.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-02.sh @@ -5,3 +5,4 @@ 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). +sort -k3 -nr ./scores-table.txt \ No newline at end of file diff --git a/shell-pipelines/sort-uniq-head-tail/script-03.sh b/shell-pipelines/sort-uniq-head-tail/script-03.sh index bcbaf342..1abef004 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-03.sh +++ b/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 -n ./scores-table.txt | tail -r -n3 +# sort -k3 -nr ./scores-table.txt | head -n3 \ No newline at end of file diff --git a/shell-pipelines/sort-uniq-head-tail/script-04.sh b/shell-pipelines/sort-uniq-head-tail/script-04.sh index 65a5cfba..d661cf41 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-04.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-04.sh @@ -5,3 +5,4 @@ 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 -nr ./scores-table.txt | head -n2 | tail -n1 diff --git a/shell-pipelines/sort-uniq-head-tail/script-05.sh b/shell-pipelines/sort-uniq-head-tail/script-05.sh index a93cd9f9..f35b162c 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-05.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-05.sh @@ -6,3 +6,4 @@ 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 -u ./events.txt \ 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 715c7ae5..12a81625 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-06.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-06.sh @@ -5,3 +5,4 @@ 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 \ No newline at end of file diff --git a/shell-pipelines/sort-uniq-head-tail/script-07.sh b/shell-pipelines/sort-uniq-head-tail/script-07.sh index 7fd07e1f..fbe1a6c7 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-07.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-07.sh @@ -6,3 +6,4 @@ 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. +grep -o 'Entry\|Exit' ./events-with-timestamps.txt | sort | uniq -c \ No newline at end of file From 2bd7c0579a14de1080e93a9b320e0e19f9fe0baf Mon Sep 17 00:00:00 2001 From: JanefrancessC Date: Thu, 19 Mar 2026 19:19:05 +0000 Subject: [PATCH 3/3] tr done --- shell-pipelines/tr/script-01.sh | 2 ++ shell-pipelines/tr/script-02.sh | 1 + 2 files changed, 3 insertions(+) diff --git a/shell-pipelines/tr/script-01.sh b/shell-pipelines/tr/script-01.sh index 8bb0211e..5b5f40eb 100755 --- a/shell-pipelines/tr/script-01.sh +++ b/shell-pipelines/tr/script-01.sh @@ -6,3 +6,5 @@ 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 (.). +# cat ./text.txt | tr '!' '.' +tr '!' '.' < ./text.txt \ No newline at end of file diff --git a/shell-pipelines/tr/script-02.sh b/shell-pipelines/tr/script-02.sh index cf3a503a..6fa21555 100755 --- a/shell-pipelines/tr/script-02.sh +++ b/shell-pipelines/tr/script-02.sh @@ -7,3 +7,4 @@ 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). +tr 'YyZz' 'ZzYy' < ./text.txt \ No newline at end of file