From 83d05fa9c04cb59e3cd5da4afc256d3a4fb10dff Mon Sep 17 00:00:00 2001 From: Ammad Date: Mon, 23 Mar 2026 19:35:59 +0000 Subject: [PATCH 1/6] Complete ls exercises --- individual-shell-tools/ls/script-01.sh | 2 ++ individual-shell-tools/ls/script-02.sh | 2 ++ individual-shell-tools/ls/script-03.sh | 2 ++ individual-shell-tools/ls/script-04.sh | 4 ++++ 4 files changed, 10 insertions(+) diff --git a/individual-shell-tools/ls/script-01.sh b/individual-shell-tools/ls/script-01.sh index 241b62f5e..8f93bb79e 100755 --- a/individual-shell-tools/ls/script-01.sh +++ b/individual-shell-tools/ls/script-01.sh @@ -13,3 +13,5 @@ fi # TODO: Write a command to list the files and folders in this directory. # The output should be a list of names including child-directory, script-01.sh, script-02.sh, and more. + +ls \ No newline at end of file diff --git a/individual-shell-tools/ls/script-02.sh b/individual-shell-tools/ls/script-02.sh index d0a5a10f4..63d64bb91 100755 --- a/individual-shell-tools/ls/script-02.sh +++ b/individual-shell-tools/ls/script-02.sh @@ -4,3 +4,5 @@ set -euo pipefail # TODO: Write a command which lists all of the files in the directory named child-directory. # The output should be a list of names: helper-1.txt, helper-2.txt, helper-3.txt. + +ls child-directory \ No newline at end of file diff --git a/individual-shell-tools/ls/script-03.sh b/individual-shell-tools/ls/script-03.sh index 781216d21..b259fcb1d 100755 --- a/individual-shell-tools/ls/script-03.sh +++ b/individual-shell-tools/ls/script-03.sh @@ -5,3 +5,5 @@ 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. # 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. + +ls -R \ No newline at end of file diff --git a/individual-shell-tools/ls/script-04.sh b/individual-shell-tools/ls/script-04.sh index 72f3817b3..0071c96d1 100755 --- a/individual-shell-tools/ls/script-04.sh +++ b/individual-shell-tools/ls/script-04.sh @@ -16,8 +16,12 @@ 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. +ls -t child-directory + 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. + +ls -rt child-directory \ No newline at end of file From bf9dfcfc57e8bf11dcc36c08959714f1333816be Mon Sep 17 00:00:00 2001 From: Ammad Date: Mon, 23 Mar 2026 19:48:20 +0000 Subject: [PATCH 2/6] Complete cat exercises --- individual-shell-tools/cat/script-01.sh | 2 ++ individual-shell-tools/cat/script-02.sh | 2 ++ individual-shell-tools/cat/script-03.sh | 2 ++ individual-shell-tools/cat/script-04-stretch.sh | 2 ++ 4 files changed, 8 insertions(+) diff --git a/individual-shell-tools/cat/script-01.sh b/individual-shell-tools/cat/script-01.sh index c85053e0f..da5ec5029 100755 --- a/individual-shell-tools/cat/script-01.sh +++ b/individual-shell-tools/cat/script-01.sh @@ -4,3 +4,5 @@ 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. # The output of this command should be "Once upon a time...". + +cat ../helper-files/helper-1.txt \ No newline at end of file diff --git a/individual-shell-tools/cat/script-02.sh b/individual-shell-tools/cat/script-02.sh index 01bbd5eab..913e2c51b 100755 --- a/individual-shell-tools/cat/script-02.sh +++ b/individual-shell-tools/cat/script-02.sh @@ -11,3 +11,5 @@ set -euo pipefail # It looked delicious. # I was tempted to take a bite of it. # But this seemed like a bad idea... + +cat ../helper-files/helper-1.txt ../helper-files/helper-2.txt ../helper-files/helper-3.txt \ No newline at end of file diff --git a/individual-shell-tools/cat/script-03.sh b/individual-shell-tools/cat/script-03.sh index 37573b0c1..e4e7c7fe3 100755 --- a/individual-shell-tools/cat/script-03.sh +++ b/individual-shell-tools/cat/script-03.sh @@ -9,3 +9,5 @@ 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... + +cat -n ../helper-files/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..e64603ae3 100755 --- a/individual-shell-tools/cat/script-04-stretch.sh +++ b/individual-shell-tools/cat/script-04-stretch.sh @@ -13,3 +13,5 @@ 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... + +cat ../helper-files/* | cat -n \ No newline at end of file From f221099e73005cbaa183656f090fb445184f7d15 Mon Sep 17 00:00:00 2001 From: Ammad Date: Mon, 23 Mar 2026 19:52:48 +0000 Subject: [PATCH 3/6] Complete wc exercise --- individual-shell-tools/wc/script-01.sh | 2 ++ individual-shell-tools/wc/script-02.sh | 2 ++ individual-shell-tools/wc/script-03.sh | 4 ++++ 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..22b7b8d9e 100755 --- a/individual-shell-tools/wc/script-01.sh +++ b/individual-shell-tools/wc/script-01.sh @@ -4,3 +4,5 @@ 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. + +wc -w ../helper-files/helper-3.txt \ No newline at end of file diff --git a/individual-shell-tools/wc/script-02.sh b/individual-shell-tools/wc/script-02.sh index 8feeb1a62..8874591e5 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. + +wc -l ../helper-files/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..e809b5941 100755 --- a/individual-shell-tools/wc/script-03.sh +++ b/individual-shell-tools/wc/script-03.sh @@ -8,3 +8,7 @@ set -euo pipefail # 1 7 39 ../helper-files/helper-2.txt # 3 19 92 ../helper-files/helper-3.txt # 5 30 151 total + +wc -clw ../helper-files/* + +# also works witohut the flags wc ../helper-files/* \ No newline at end of file From ccb519e9a99e3afa696a06aedace2c4cb8bd39f8 Mon Sep 17 00:00:00 2001 From: Ammad Date: Mon, 23 Mar 2026 21:22:16 +0000 Subject: [PATCH 4/6] Complete grep exercises --- individual-shell-tools/grep/script-01.sh | 2 ++ individual-shell-tools/grep/script-02.sh | 2 ++ individual-shell-tools/grep/script-03.sh | 2 ++ individual-shell-tools/grep/script-04.sh | 2 ++ individual-shell-tools/grep/script-05.sh | 2 ++ individual-shell-tools/grep/script-06.sh | 2 ++ individual-shell-tools/grep/script-07.sh | 2 ++ 7 files changed, 14 insertions(+) diff --git a/individual-shell-tools/grep/script-01.sh b/individual-shell-tools/grep/script-01.sh index fb05f42f2..fce3ab7c9 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. + +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..d01c3ce1c 100755 --- a/individual-shell-tools/grep/script-02.sh +++ b/individual-shell-tools/grep/script-02.sh @@ -4,3 +4,5 @@ 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. + +grep -i 'Doctor' dialogue.txt \ No newline at end of file diff --git a/individual-shell-tools/grep/script-03.sh b/individual-shell-tools/grep/script-03.sh index 5383fe578..c92aba256 100755 --- a/individual-shell-tools/grep/script-03.sh +++ b/individual-shell-tools/grep/script-03.sh @@ -4,3 +4,5 @@ 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. + +grep -ci 'Doctor' dialogue.txt \ No newline at end of file diff --git a/individual-shell-tools/grep/script-04.sh b/individual-shell-tools/grep/script-04.sh index 80ee04776..ed8ebe1d7 100755 --- a/individual-shell-tools/grep/script-04.sh +++ b/individual-shell-tools/grep/script-04.sh @@ -4,3 +4,5 @@ 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. + +grep -iv 'Hello' dialogue.txt \ No newline at end of file diff --git a/individual-shell-tools/grep/script-05.sh b/individual-shell-tools/grep/script-05.sh index 1eb538185..f310543f3 100755 --- a/individual-shell-tools/grep/script-05.sh +++ b/individual-shell-tools/grep/script-05.sh @@ -4,3 +4,5 @@ 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). + +grep -B 1 'cure' dialogue.txt \ No newline at end of file diff --git a/individual-shell-tools/grep/script-06.sh b/individual-shell-tools/grep/script-06.sh index 5670e3b6c..282402ff9 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. + +grep -l '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..e587049b8 100755 --- a/individual-shell-tools/grep/script-07.sh +++ b/individual-shell-tools/grep/script-07.sh @@ -4,3 +4,5 @@ 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. + +grep -c '^Doctor' *.txt \ No newline at end of file From 49ce680d16983cdfb21765d93ffe835e40779a39 Mon Sep 17 00:00:00 2001 From: Ammad Date: Mon, 23 Mar 2026 22:01:37 +0000 Subject: [PATCH 5/6] Complete sed exercises --- individual-shell-tools/sed/script-01.sh | 2 ++ individual-shell-tools/sed/script-02.sh | 2 ++ individual-shell-tools/sed/script-03.sh | 2 ++ individual-shell-tools/sed/script-04.sh | 2 ++ individual-shell-tools/sed/script-05.sh | 2 ++ individual-shell-tools/sed/script-06.sh | 2 ++ 6 files changed, 12 insertions(+) diff --git a/individual-shell-tools/sed/script-01.sh b/individual-shell-tools/sed/script-01.sh index d592970fc..0bd78a317 100755 --- a/individual-shell-tools/sed/script-01.sh +++ b/individual-shell-tools/sed/script-01.sh @@ -5,3 +5,5 @@ 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.". + +sed 's/i/I/g' input.txt \ No newline at end of file diff --git a/individual-shell-tools/sed/script-02.sh b/individual-shell-tools/sed/script-02.sh index abdd64d06..7db8a2a15 100755 --- a/individual-shell-tools/sed/script-02.sh +++ b/individual-shell-tools/sed/script-02.sh @@ -5,3 +5,5 @@ set -euo pipefail # TODO: Write a command to output input.txt with numbers removed. # The output should contain 11 lines. # Line 6 of the output should be " Alisha". + +sed 's/[0-9]//g' input.txt \ No newline at end of file diff --git a/individual-shell-tools/sed/script-03.sh b/individual-shell-tools/sed/script-03.sh index dd284a296..9047fee4a 100755 --- a/individual-shell-tools/sed/script-03.sh +++ b/individual-shell-tools/sed/script-03.sh @@ -4,3 +4,5 @@ set -euo pipefail # TODO: Write a command to output input.txt removing any line which contains a number. # The output should contain 6 lines. + +sed '/[0-9]/d' input.txt \ No newline at end of file diff --git a/individual-shell-tools/sed/script-04.sh b/individual-shell-tools/sed/script-04.sh index 0052ac6c4..ae19f6735 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. + +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..0e499d0c3 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. + +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..4e945f153 100755 --- a/individual-shell-tools/sed/script-06.sh +++ b/individual-shell-tools/sed/script-06.sh @@ -8,3 +8,5 @@ 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.". + +sed -E 's/,([^ ])/\, \1/g' input.txt \ No newline at end of file From ffbf18364ea619874a095c92d398ef6df02192c5 Mon Sep 17 00:00:00 2001 From: Ammad Date: Mon, 23 Mar 2026 22:29:07 +0000 Subject: [PATCH 6/6] Complete awk exercises --- individual-shell-tools/awk/script-01.sh | 2 ++ individual-shell-tools/awk/script-02.sh | 2 ++ individual-shell-tools/awk/script-03.sh | 2 ++ individual-shell-tools/awk/script-04.sh | 2 ++ individual-shell-tools/awk/script-05.sh | 2 ++ 5 files changed, 10 insertions(+) diff --git a/individual-shell-tools/awk/script-01.sh b/individual-shell-tools/awk/script-01.sh index 8db4390af..587ed2acb 100755 --- a/individual-shell-tools/awk/script-01.sh +++ b/individual-shell-tools/awk/script-01.sh @@ -4,3 +4,5 @@ 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. + +awk '{print $1}' scores-table.txt \ No newline at end of file diff --git a/individual-shell-tools/awk/script-02.sh b/individual-shell-tools/awk/script-02.sh index 5956be9bd..c8e81537b 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. + +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..67365bfa4 100755 --- a/individual-shell-tools/awk/script-03.sh +++ b/individual-shell-tools/awk/script-03.sh @@ -5,3 +5,5 @@ 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". + +awk '{print $1, $3}' scores-table.txt \ No newline at end of file diff --git a/individual-shell-tools/awk/script-04.sh b/individual-shell-tools/awk/script-04.sh index bf15703c7..38ba49ba5 100755 --- a/individual-shell-tools/awk/script-04.sh +++ b/individual-shell-tools/awk/script-04.sh @@ -5,3 +5,5 @@ 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. # Your output should contain 3 lines, each with one word and one number on it. # The first line should be "Ahmed 4". + +awk '{print $1, $5}' scores-table.txt \ No newline at end of file diff --git a/individual-shell-tools/awk/script-05.sh b/individual-shell-tools/awk/script-05.sh index d1680cb02..0df43b872 100755 --- a/individual-shell-tools/awk/script-05.sh +++ b/individual-shell-tools/awk/script-05.sh @@ -5,3 +5,5 @@ 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". + +awk '{print $1, NF-2}' scores-table.txt \ No newline at end of file