From 3c27d0c266f0695a798befa014b0285893d936fb Mon Sep 17 00:00:00 2001 From: sarawone Date: Wed, 8 Jul 2026 12:26:55 +0100 Subject: [PATCH 1/6] ls_exercise --- individual-shell-tools/ls/script-01.sh | 2 ++ individual-shell-tools/ls/script-02.sh | 3 +++ individual-shell-tools/ls/script-03.sh | 4 ++++ individual-shell-tools/ls/script-04.sh | 5 ++++- 4 files changed, 13 insertions(+), 1 deletion(-) diff --git a/individual-shell-tools/ls/script-01.sh b/individual-shell-tools/ls/script-01.sh index 241b62f5e..b528c8318 100755 --- a/individual-shell-tools/ls/script-01.sh +++ b/individual-shell-tools/ls/script-01.sh @@ -12,4 +12,6 @@ if [[ "${script_dir}" != "$(pwd)" ]]; then fi # TODO: Write a command to list the files and folders in this directory. + cd individual-shell-tools/ls + ls # The output should be a list of names including child-directory, script-01.sh, script-02.sh, and more. diff --git a/individual-shell-tools/ls/script-02.sh b/individual-shell-tools/ls/script-02.sh index d0a5a10f4..c092a01fe 100755 --- a/individual-shell-tools/ls/script-02.sh +++ b/individual-shell-tools/ls/script-02.sh @@ -3,4 +3,7 @@ set -euo pipefail # TODO: Write a command which lists all of the files in the directory named child-directory. +cd individual-shell-tools/ls/child-directory +ls + # The output should be a list of names: helper-1.txt, helper-2.txt, helper-3.txt. diff --git a/individual-shell-tools/ls/script-03.sh b/individual-shell-tools/ls/script-03.sh index 781216d21..352d05c66 100755 --- a/individual-shell-tools/ls/script-03.sh +++ b/individual-shell-tools/ls/script-03.sh @@ -3,5 +3,9 @@ set -euo pipefail # TODO: Write a command which _recursively_ lists all of the files and folders in this directory _and_ all of the files inside those folders. +cd individual-shell-tools/ +cd ls +ls -R + # The output should be a list of names including: child-directory, script-01.sh, helper-1.txt (and more). # The formatting of the output doesn't matter. diff --git a/individual-shell-tools/ls/script-04.sh b/individual-shell-tools/ls/script-04.sh index 72f3817b3..8b85cb46f 100755 --- a/individual-shell-tools/ls/script-04.sh +++ b/individual-shell-tools/ls/script-04.sh @@ -15,9 +15,12 @@ echo "First exercise (sorted newest to oldest):" # TODO: Write a command which lists the files in the child-directory directory, one per line, sorted so that the most recently modified file is first. # The output should be a list of names in this order, one per line: helper-3.txt, helper-1.txt, helper-2.txt. - +cd individual-shell-tools/ls/child-directory +ls -lt echo "Second exercise (sorted oldest to newest):" # TODO: Write a command which does the same as above, but sorted in the opposite order (oldest first). # The output should be a list of names in this order, one per line: helper-2.txt, helper-1.txt, helper-3.txt. +cd individual-shell-tools/ls/child-directory +ls -ltr \ No newline at end of file From 08bdae5cfd52a9ad5ae1bed56028868d7a7dcc7c Mon Sep 17 00:00:00 2001 From: sarawone Date: Wed, 8 Jul 2026 12:52:22 +0100 Subject: [PATCH 2/6] AYK_cat_exercise --- individual-shell-tools/cat/script-01.sh | 2 ++ individual-shell-tools/cat/script-02.sh | 3 +++ individual-shell-tools/cat/script-03.sh | 3 +++ individual-shell-tools/cat/script-04-stretch.sh | 4 ++++ 4 files changed, 12 insertions(+) diff --git a/individual-shell-tools/cat/script-01.sh b/individual-shell-tools/cat/script-01.sh index c85053e0f..411a64d62 100755 --- a/individual-shell-tools/cat/script-01.sh +++ b/individual-shell-tools/cat/script-01.sh @@ -3,4 +3,6 @@ set -euo pipefail # TODO: Write a command to output the contents of the helper-1.txt file inside the helper-files directory to the terminal. +cd individual-shell-tools/helper-files +cat helper-1.txt # The output of this command should be "Once upon a time...". diff --git a/individual-shell-tools/cat/script-02.sh b/individual-shell-tools/cat/script-02.sh index 01bbd5eab..afc7cbf6c 100755 --- a/individual-shell-tools/cat/script-02.sh +++ b/individual-shell-tools/cat/script-02.sh @@ -11,3 +11,6 @@ set -euo pipefail # It looked delicious. # I was tempted to take a bite of it. # But this seemed like a bad idea... + +cd individual-shell-tools/helper-files +cat helper-1.txt helper-2.txt helper-3.txt diff --git a/individual-shell-tools/cat/script-03.sh b/individual-shell-tools/cat/script-03.sh index 37573b0c1..020e1b7b1 100755 --- a/individual-shell-tools/cat/script-03.sh +++ b/individual-shell-tools/cat/script-03.sh @@ -9,3 +9,6 @@ set -euo pipefail # 1 It looked delicious. # 2 I was tempted to take a bite of it. # 3 But this seemed like a bad idea... + +cd individual-shell-tools/helper-files +cat -n helper-3.txt \ No newline at end of file diff --git a/individual-shell-tools/cat/script-04-stretch.sh b/individual-shell-tools/cat/script-04-stretch.sh index 00fe3c48b..60dd5ec53 100755 --- a/individual-shell-tools/cat/script-04-stretch.sh +++ b/individual-shell-tools/cat/script-04-stretch.sh @@ -13,3 +13,7 @@ set -euo pipefail # 3 It looked delicious. # 4 I was tempted to take a bite of it. # 5 But this seemed like a bad idea... + +cd individual-shell-tools/helper-files +cat helper-1.txt helper-2.txt helper-3.txt | nl + From 9a3cee04e49b59131388dc45320fff886e4c4ff3 Mon Sep 17 00:00:00 2001 From: sarawone Date: Wed, 8 Jul 2026 12:59:47 +0100 Subject: [PATCH 3/6] wc_exercise --- individual-shell-tools/wc/script-01.sh | 3 +++ individual-shell-tools/wc/script-02.sh | 2 ++ individual-shell-tools/wc/script-03.sh | 3 +++ 3 files changed, 8 insertions(+) diff --git a/individual-shell-tools/wc/script-01.sh b/individual-shell-tools/wc/script-01.sh index c9dd6e5df..174a052c7 100755 --- a/individual-shell-tools/wc/script-01.sh +++ b/individual-shell-tools/wc/script-01.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output the number of words in the file helper-files/helper-3.txt. # The output should include the number 19. The output should not include the number 92. + +cd individual-shell-tools/helper-files +wc -w helper-3.txt diff --git a/individual-shell-tools/wc/script-02.sh b/individual-shell-tools/wc/script-02.sh index 8feeb1a62..fae9dc7a0 100755 --- a/individual-shell-tools/wc/script-02.sh +++ b/individual-shell-tools/wc/script-02.sh @@ -4,3 +4,5 @@ set -euo pipefail # TODO: Write a command to output the number of lines in the file helper-files/helper-3.txt. # The output should include the number 3. The output should not include the number 19. +cd individual-shell-tools/helper-files +wc -l helper-3.txt \ No newline at end of file diff --git a/individual-shell-tools/wc/script-03.sh b/individual-shell-tools/wc/script-03.sh index 6b2e9d3d1..ace2f61e5 100755 --- a/individual-shell-tools/wc/script-03.sh +++ b/individual-shell-tools/wc/script-03.sh @@ -8,3 +8,6 @@ set -euo pipefail # 1 7 39 ../helper-files/helper-2.txt # 3 19 92 ../helper-files/helper-3.txt # 5 30 151 total + +cd individual-shell-tools/helper-files +wc helper-1.txt helper-2.txt helper-3.txt \ No newline at end of file From e8c853b5bc302f765c66b8d017f1de9086c8fdaa Mon Sep 17 00:00:00 2001 From: sarawone Date: Wed, 8 Jul 2026 14:44:00 +0100 Subject: [PATCH 4/6] grep_exercise --- individual-shell-tools/grep/script-01.sh | 2 ++ individual-shell-tools/grep/script-02.sh | 3 +++ individual-shell-tools/grep/script-03.sh | 3 +++ individual-shell-tools/grep/script-04.sh | 3 +++ individual-shell-tools/grep/script-05.sh | 3 +++ individual-shell-tools/grep/script-06.sh | 2 ++ individual-shell-tools/grep/script-07.sh | 3 +++ 7 files changed, 19 insertions(+) diff --git a/individual-shell-tools/grep/script-01.sh b/individual-shell-tools/grep/script-01.sh index fb05f42f2..429c4d39f 100755 --- a/individual-shell-tools/grep/script-01.sh +++ b/individual-shell-tools/grep/script-01.sh @@ -4,3 +4,5 @@ set -euo pipefail # TODO: Write a command to output every line in dialogue.txt said by the Doctor. # The output should contain 6 lines. +cd individual-shell-tools/grep +grep "^Doctor" dialogue.txt \ No newline at end of file diff --git a/individual-shell-tools/grep/script-02.sh b/individual-shell-tools/grep/script-02.sh index df6f85640..71928f0aa 100755 --- a/individual-shell-tools/grep/script-02.sh +++ b/individual-shell-tools/grep/script-02.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output every line in dialogue.txt that contains the word Doctor (regardless of case). # The output should contain 9 lines. + +cd individual-shell-tools/grep +grep -i "Doctor" dialogue.txt diff --git a/individual-shell-tools/grep/script-03.sh b/individual-shell-tools/grep/script-03.sh index 5383fe578..8e4c4ab7d 100755 --- a/individual-shell-tools/grep/script-03.sh +++ b/individual-shell-tools/grep/script-03.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output the number of lines in dialogue.txt that contain the word Doctor (regardless of case). # The output should be exactly the number 9. + +cd individual-shell-tools/grep +grep -ic "Doctor" dialogue.txt diff --git a/individual-shell-tools/grep/script-04.sh b/individual-shell-tools/grep/script-04.sh index 80ee04776..714931121 100755 --- a/individual-shell-tools/grep/script-04.sh +++ b/individual-shell-tools/grep/script-04.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output every line in dialogue.txt that does not contain the word "Hello" (regardless of case). # The output should contain 10 lines. + +cd individual-shell-tools/grep +grep -iv "Hello" dialogue.txt diff --git a/individual-shell-tools/grep/script-05.sh b/individual-shell-tools/grep/script-05.sh index 1eb538185..0628e4ea5 100755 --- a/individual-shell-tools/grep/script-05.sh +++ b/individual-shell-tools/grep/script-05.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output every line in dialogue.txt that contains the string "cure", as well as the line before that line. # The output should contain two pairs of two lines of text (with a separator between them). + +cd individual-shell-tools/grep +grep -B 1 "cure" dialogue.txt diff --git a/individual-shell-tools/grep/script-06.sh b/individual-shell-tools/grep/script-06.sh index 5670e3b6c..315bdbf3f 100755 --- a/individual-shell-tools/grep/script-06.sh +++ b/individual-shell-tools/grep/script-06.sh @@ -4,3 +4,5 @@ set -euo pipefail # TODO: Write a command to output the name of every `.txt` file in this directory which contains a line of dialogue said by the Doctor. # The output should contain two filenames. +cd individual-shell-tools/grep +grep -rl "Doctor" *.txt \ No newline at end of file diff --git a/individual-shell-tools/grep/script-07.sh b/individual-shell-tools/grep/script-07.sh index 9670ebad9..5cb19e606 100755 --- a/individual-shell-tools/grep/script-07.sh +++ b/individual-shell-tools/grep/script-07.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output, for each `.txt` file in this directory, how many lines of dialogue the Doctor has. # The output should show that dialogue.txt contains 6 lines, dialogue-2.txt contains 2, and dialogue-3.txt contains 0. + +cd individual-shell-tools/grep +grep -rc "^Doctor" *.txt From 39d6eabeb93efe2aab5569e4c0d41d2403a42894 Mon Sep 17 00:00:00 2001 From: sarawone Date: Wed, 8 Jul 2026 19:09:38 +0100 Subject: [PATCH 5/6] sed_exercise --- individual-shell-tools/sed/script-01.sh | 3 +++ individual-shell-tools/sed/script-02.sh | 7 ++++++- individual-shell-tools/sed/script-03.sh | 3 +++ individual-shell-tools/sed/script-04.sh | 2 ++ individual-shell-tools/sed/script-05.sh | 2 ++ individual-shell-tools/sed/script-06.sh | 3 +++ 6 files changed, 19 insertions(+), 1 deletion(-) diff --git a/individual-shell-tools/sed/script-01.sh b/individual-shell-tools/sed/script-01.sh index 3eba6fa4d..10b264d1d 100755 --- a/individual-shell-tools/sed/script-01.sh +++ b/individual-shell-tools/sed/script-01.sh @@ -5,3 +5,6 @@ set -euo pipefail # TODO: Write a command to output input.txt with all occurrences of the letter `i` replaced with `I`. # The output should contain 11 lines. # The first line of the output should be: "ThIs Is a sample fIle for experImentIng with sed.". + +cd individual-shell-tools/sed +sed 's/i/I/g' input.txt diff --git a/individual-shell-tools/sed/script-02.sh b/individual-shell-tools/sed/script-02.sh index abdd64d06..15373e13c 100755 --- a/individual-shell-tools/sed/script-02.sh +++ b/individual-shell-tools/sed/script-02.sh @@ -2,6 +2,11 @@ set -euo pipefail -# TODO: Write a command to output input.txt with numbers removed. +# TODO: Write a command to output input.txt with / # The output should contain 11 lines. # Line 6 of the output should be " Alisha". + +cd individual-shell-tools/sed +sed 's/[0-9]/ /g' input.txt + + diff --git a/individual-shell-tools/sed/script-03.sh b/individual-shell-tools/sed/script-03.sh index dd284a296..21fead314 100755 --- a/individual-shell-tools/sed/script-03.sh +++ b/individual-shell-tools/sed/script-03.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output input.txt removing any line which contains a number. # The output should contain 6 lines. + +cd individual-shell-tools/sed +sed '/[0-9]/d' input.txt diff --git a/individual-shell-tools/sed/script-04.sh b/individual-shell-tools/sed/script-04.sh index 0052ac6c4..4609c131d 100755 --- a/individual-shell-tools/sed/script-04.sh +++ b/individual-shell-tools/sed/script-04.sh @@ -4,3 +4,5 @@ set -euo pipefail # TODO: Write a command to output input.txt replacing every occurrence of the string "We'll" with "We will". # The output should contain 11 lines. +cd individual-shell-tools/sed +sed "s/We'll/We Will/g" input.txt \ No newline at end of file diff --git a/individual-shell-tools/sed/script-05.sh b/individual-shell-tools/sed/script-05.sh index 2dcc91a0c..bf4ac5866 100755 --- a/individual-shell-tools/sed/script-05.sh +++ b/individual-shell-tools/sed/script-05.sh @@ -6,3 +6,5 @@ set -euo pipefail # If a line starts with a number and a space, make the line instead end with a space and the number. # So line 6 which currently reads "37 Alisha" should instead read "Alisha 37". # The output should contain 11 lines. +cd individual-shell-tools/sed +sed -E 's/^([0-9]+) (.*)$/ \2 \1/' input.txt \ No newline at end of file diff --git a/individual-shell-tools/sed/script-06.sh b/individual-shell-tools/sed/script-06.sh index 0b9390170..af1381bd5 100755 --- a/individual-shell-tools/sed/script-06.sh +++ b/individual-shell-tools/sed/script-06.sh @@ -8,3 +8,6 @@ set -euo pipefail # The output should contain 11 lines. # Line 3 should be "It contains many lines, and there are some things you may want to do with each of them.". # Line 11 should be "We also should remember, when we go shopping, to get 4 items: oranges, cheese, bread, olives.". + +cd individual-shell-tools/sed +sed -E 's/,([^ ])/, / \1/g' From ccd4e94bf5b1892d48df429f19adebfefa35c145 Mon Sep 17 00:00:00 2001 From: sarawone Date: Wed, 8 Jul 2026 21:07:35 +0100 Subject: [PATCH 6/6] awk_exercise --- individual-shell-tools/awk/script-01.sh | 3 +++ individual-shell-tools/awk/script-02.sh | 2 ++ individual-shell-tools/awk/script-03.sh | 3 +++ individual-shell-tools/awk/script-04.sh | 5 ++++- individual-shell-tools/awk/script-05.sh | 3 +++ individual-shell-tools/awk/script-06-stretch.sh | 3 +++ individual-shell-tools/awk/script-07-stretch.sh | 3 +++ 7 files changed, 21 insertions(+), 1 deletion(-) diff --git a/individual-shell-tools/awk/script-01.sh b/individual-shell-tools/awk/script-01.sh index 8db4390af..9ac7db502 100755 --- a/individual-shell-tools/awk/script-01.sh +++ b/individual-shell-tools/awk/script-01.sh @@ -4,3 +4,6 @@ set -euo pipefail # TODO: Write a command to output just the names of each player in `scores-table.txt`. # Your output should contain 6 lines, each with just one word on it. + +cd individual-shell-tools/awk +awk '{print $1}' scores-table.txt diff --git a/individual-shell-tools/awk/script-02.sh b/individual-shell-tools/awk/script-02.sh index 5956be9bd..95c9cb907 100755 --- a/individual-shell-tools/awk/script-02.sh +++ b/individual-shell-tools/awk/script-02.sh @@ -4,3 +4,5 @@ set -euo pipefail # 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, separated by a space. +cd individual-shell-tools/awk +awk '{print $1, $2}' scores-table.txt \ No newline at end of file diff --git a/individual-shell-tools/awk/script-03.sh b/individual-shell-tools/awk/script-03.sh index af7c6e8b9..22d17cd46 100755 --- a/individual-shell-tools/awk/script-03.sh +++ b/individual-shell-tools/awk/script-03.sh @@ -5,3 +5,6 @@ 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". + +cd individual-shell-tools/awk +awk '{print $1, $3}' scores-table.txt diff --git a/individual-shell-tools/awk/script-04.sh b/individual-shell-tools/awk/script-04.sh index bf15703c7..65b2ec969 100755 --- a/individual-shell-tools/awk/script-04.sh +++ b/individual-shell-tools/awk/script-04.sh @@ -2,6 +2,9 @@ set -euo pipefail -# TODO: Write a command to output just the names of each player in London along with the score from their last attempt. +# TODO: Write a command to output just the names of each player in $2London along with the score from their last attempt. # Your output should contain 3 lines, each with one word and one number on it. # The first line should be "Ahmed 4". + +cd individual-shell-tools/awk +awk '/London/ {print $1, $NF}' scores-table.txt diff --git a/individual-shell-tools/awk/script-05.sh b/individual-shell-tools/awk/script-05.sh index d1680cb02..d0a1de7c2 100755 --- a/individual-shell-tools/awk/script-05.sh +++ b/individual-shell-tools/awk/script-05.sh @@ -5,3 +5,6 @@ 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". + +cd individual-shell-tools/awk +awk '{count = $3+$4+$5+$6+$7} {print $1, count}' scores-table.txt diff --git a/individual-shell-tools/awk/script-06-stretch.sh b/individual-shell-tools/awk/script-06-stretch.sh index 0201e6378..09e28247c 100755 --- a/individual-shell-tools/awk/script-06-stretch.sh +++ b/individual-shell-tools/awk/script-06-stretch.sh @@ -6,3 +6,6 @@ set -euo pipefail # TODO: Write a command to output the total of adding together all players' first scores. # Your output should be exactly the number 54. + +cd individual-shell-tools/awk +awk '{count += $3} END {print count}' scores-table.txt diff --git a/individual-shell-tools/awk/script-07-stretch.sh b/individual-shell-tools/awk/script-07-stretch.sh index 3f7155880..91fecb24f 100755 --- a/individual-shell-tools/awk/script-07-stretch.sh +++ b/individual-shell-tools/awk/script-07-stretch.sh @@ -7,3 +7,6 @@ set -euo pipefail # TODO: Write a command to output just the names of each player along with the total of adding all of that player's scores. # Your output should contain 6 lines, each with one word and one number on it. # The first line should be "Ahmed 15". The second line should be "Basia 37" + +cd individual-shell-tools/awk +awk '{count = $3+$4+$5+$6+$7} {print $1, count}' scores-table.txt