From 08ddeadfeec5dfc11cd0b5ec59416c669155cb1c Mon Sep 17 00:00:00 2001 From: Fatma Degirmenci Date: Sat, 15 Nov 2025 15:15:59 +0000 Subject: [PATCH 1/3] Complete ls-grep file' --- shell-pipelines/ls-grep/script-01.sh | 1 + shell-pipelines/ls-grep/script-02.sh | 1 + shell-pipelines/ls-grep/script-03.sh | 2 ++ shell-pipelines/ls-grep/script-04.sh | 1 + 4 files changed, 5 insertions(+) diff --git a/shell-pipelines/ls-grep/script-01.sh b/shell-pipelines/ls-grep/script-01.sh index 8c7d968a2..8aff0e5fc 100755 --- a/shell-pipelines/ls-grep/script-01.sh +++ b/shell-pipelines/ls-grep/script-01.sh @@ -3,4 +3,5 @@ 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. +ls sample-files|grep '[A-Z]' # Your output should contain 11 files. diff --git a/shell-pipelines/ls-grep/script-02.sh b/shell-pipelines/ls-grep/script-02.sh index 16f5f71d9..da8194fb1 100755 --- a/shell-pipelines/ls-grep/script-02.sh +++ b/shell-pipelines/ls-grep/script-02.sh @@ -3,4 +3,5 @@ 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. +ls sample-files|grep '^[A-Z]' # Your output should contain 10 files. diff --git a/shell-pipelines/ls-grep/script-03.sh b/shell-pipelines/ls-grep/script-03.sh index a302ab036..600324288 100755 --- a/shell-pipelines/ls-grep/script-03.sh +++ b/shell-pipelines/ls-grep/script-03.sh @@ -3,4 +3,6 @@ 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. +ls sample-files |grep '^[A-Z][a-z]*$' # Your output should contain 7 files. + diff --git a/shell-pipelines/ls-grep/script-04.sh b/shell-pipelines/ls-grep/script-04.sh index c000b7e3b..5bf133a56 100755 --- a/shell-pipelines/ls-grep/script-04.sh +++ b/shell-pipelines/ls-grep/script-04.sh @@ -3,4 +3,5 @@ set -euo pipefail # TODO: Write a command to count the number of files in the sample-files directory whose name starts with an upper case letter and doesn't contain any other upper case letters. +ls sample-files |grep '^[A-Z][a-z]*$'|wc -l # Your output should be the number 7. From 12c9da83fcf814ef43497016ea17c50ce6d913e6 Mon Sep 17 00:00:00 2001 From: Fatma Degirmenci Date: Mon, 17 Nov 2025 10:45:06 +0000 Subject: [PATCH 2/3] Complete sort-uniq-head-tail file --- 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 | 1 + 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 | 2 ++ 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 171e1f989..8ad325a1d 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-01.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-01.sh @@ -4,4 +4,5 @@ set -euo pipefail # The input for this script is the scores-table.txt file. # TODO: Write a command to output scores-table.txt, with lines sorted by the person's name. +sort -k1 scores-table.txt # 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". diff --git a/shell-pipelines/sort-uniq-head-tail/script-02.sh b/shell-pipelines/sort-uniq-head-tail/script-02.sh index 29c3c2524..496063233 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-02.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-02.sh @@ -4,4 +4,5 @@ set -euo pipefail # The input for this script is the scores-table.txt file. # TODO: Write a command to output scores-table.txt, with lines sorted by the person's first score, descending. +sort -k3,3nr scores-table.txt # The first line of your output should be "Basia London 22 9 6" (with no quotes). diff --git a/shell-pipelines/sort-uniq-head-tail/script-03.sh b/shell-pipelines/sort-uniq-head-tail/script-03.sh index bcbaf3420..eca9c8863 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-03.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-03.sh @@ -4,6 +4,7 @@ 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 lines for the three players with the highest first score, in descending order. +sort -k3,3nr scores-table.txt|head -n 3 # Your output should be: # Basia London 22 9 6 # Piotr Glasgow 15 2 25 11 8 diff --git a/shell-pipelines/sort-uniq-head-tail/script-04.sh b/shell-pipelines/sort-uniq-head-tail/script-04.sh index 65a5cfba8..b1e538181 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-04.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-04.sh @@ -4,4 +4,5 @@ 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. +sort -k3nr scores-table.txt|head -n 2 | tail -n 1 # Your output should be: "Piotr Glasgow 15 2 25 11 8" (without quotes). diff --git a/shell-pipelines/sort-uniq-head-tail/script-05.sh b/shell-pipelines/sort-uniq-head-tail/script-05.sh index a93cd9f9d..bfcedf778 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-05.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-05.sh @@ -4,5 +4,6 @@ set -euo pipefail # The input for this script is the events.txt file. # TODO: Write a command to show a list of all events that have happened, without duplication. +sort -u events.txt # 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. diff --git a/shell-pipelines/sort-uniq-head-tail/script-06.sh b/shell-pipelines/sort-uniq-head-tail/script-06.sh index 715c7ae5c..5a75c0630 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-06.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-06.sh @@ -4,4 +4,6 @@ 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. +echo "Entry: $(grep -c 'Entry' events.txt), Exit:$(grep -c 'Exit' events.txt)" + # It should be clear from your script's output that there have been 5 Entry events and 4 Exit events. diff --git a/shell-pipelines/sort-uniq-head-tail/script-07.sh b/shell-pipelines/sort-uniq-head-tail/script-07.sh index 7fd07e1ff..1e3168e63 100755 --- a/shell-pipelines/sort-uniq-head-tail/script-07.sh +++ b/shell-pipelines/sort-uniq-head-tail/script-07.sh @@ -4,5 +4,6 @@ set -euo pipefail # The input for this script is the events-with-timestamps.txt file. # TODO: Write a command to show how many times anyone has entered and exited. +echo " $(grep -c 'Entry' events-with-timestamps.txt), $(grep -c 'Exit' events-with-timestamps.txt)" # 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. From 3aa3771047feffa0125d5ae6c9707025937b1109 Mon Sep 17 00:00:00 2001 From: Fatma Degirmenci Date: Mon, 17 Nov 2025 10:55:08 +0000 Subject: [PATCH 3/3] Complete tr exercises' --- shell-pipelines/tr/script-01.sh | 1 + shell-pipelines/tr/script-02.sh | 2 ++ 2 files changed, 3 insertions(+) diff --git a/shell-pipelines/tr/script-01.sh b/shell-pipelines/tr/script-01.sh index 8bb0211e9..f91ef30d3 100755 --- a/shell-pipelines/tr/script-01.sh +++ b/shell-pipelines/tr/script-01.sh @@ -6,3 +6,4 @@ 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 (.). +tr '!' '.' < text.txt diff --git a/shell-pipelines/tr/script-02.sh b/shell-pipelines/tr/script-02.sh index cf3a503a2..6c1338090 100755 --- a/shell-pipelines/tr/script-02.sh +++ b/shell-pipelines/tr/script-02.sh @@ -7,3 +7,5 @@ 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 'YZyz' 'ZYzy' < text.txt +