From 5ea068a756ac54d7982880f4852d441c1088d8c0 Mon Sep 17 00:00:00 2001 From: Abubakar-Meigag <113248042+Abubakar-Meigag@users.noreply.github.com> Date: Wed, 11 Mar 2026 16:54:38 +0000 Subject: [PATCH] complete individual shell tools 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 ++ individual-shell-tools/awk/script-06-stretch.sh | 2 ++ individual-shell-tools/awk/script-07-stretch.sh | 2 ++ 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 ++ 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 | 3 +++ individual-shell-tools/grep/script-05.sh | 2 ++ individual-shell-tools/grep/script-06.sh | 2 ++ individual-shell-tools/grep/script-07.sh | 2 ++ 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 ++-- individual-shell-tools/sed/script-01.sh | 2 ++ individual-shell-tools/sed/script-02.sh | 3 +++ 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 ++ individual-shell-tools/wc/script-01.sh | 3 +++ individual-shell-tools/wc/script-02.sh | 2 ++ individual-shell-tools/wc/script-03.sh | 2 ++ 31 files changed, 65 insertions(+), 2 deletions(-) diff --git a/individual-shell-tools/awk/script-01.sh b/individual-shell-tools/awk/script-01.sh index 8db4390af..140267b86 100755 --- a/individual-shell-tools/awk/script-01.sh +++ b/individual-shell-tools/awk/script-01.sh @@ -2,5 +2,7 @@ set -euo pipefail +awk '{print NF}' scores-table.txt + # 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. diff --git a/individual-shell-tools/awk/script-02.sh b/individual-shell-tools/awk/script-02.sh index 5956be9bd..e0289b42c 100755 --- a/individual-shell-tools/awk/script-02.sh +++ b/individual-shell-tools/awk/script-02.sh @@ -2,5 +2,7 @@ set -euo pipefail +awk '{print $1, $2}' scores-table.txt + # 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. diff --git a/individual-shell-tools/awk/script-03.sh b/individual-shell-tools/awk/script-03.sh index af7c6e8b9..494b07cc2 100755 --- a/individual-shell-tools/awk/script-03.sh +++ b/individual-shell-tools/awk/script-03.sh @@ -2,6 +2,8 @@ set -euo pipefail +awk '{print $1, $3}' scores-table.txt + # 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". diff --git a/individual-shell-tools/awk/script-04.sh b/individual-shell-tools/awk/script-04.sh index bf15703c7..50a89cf28 100755 --- a/individual-shell-tools/awk/script-04.sh +++ b/individual-shell-tools/awk/script-04.sh @@ -2,6 +2,8 @@ set -euo pipefail +awk '/London/ {print $1, $4}' scores-table.txt + # 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". diff --git a/individual-shell-tools/awk/script-05.sh b/individual-shell-tools/awk/script-05.sh index d1680cb02..6073de123 100755 --- a/individual-shell-tools/awk/script-05.sh +++ b/individual-shell-tools/awk/script-05.sh @@ -2,6 +2,8 @@ set -euo pipefail +awk '{print $1, NF-2}' scores-table.txt + # 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". diff --git a/individual-shell-tools/awk/script-06-stretch.sh b/individual-shell-tools/awk/script-06-stretch.sh index 0201e6378..46ffc17f1 100755 --- a/individual-shell-tools/awk/script-06-stretch.sh +++ b/individual-shell-tools/awk/script-06-stretch.sh @@ -2,6 +2,8 @@ set -euo pipefail +awk '{sum += $3} END {print sum}' scores-table.txt + # NOTE: This is a stretch exercise - it is optional. # TODO: Write a command to output the total of adding together all players' first scores. diff --git a/individual-shell-tools/awk/script-07-stretch.sh b/individual-shell-tools/awk/script-07-stretch.sh index 3f7155880..f88425f76 100755 --- a/individual-shell-tools/awk/script-07-stretch.sh +++ b/individual-shell-tools/awk/script-07-stretch.sh @@ -2,6 +2,8 @@ set -euo pipefail +awk '{for (i=3; i<=NF; i++) sum[$1] += $i} END {for (name in sum) print name, sum[name]}' scores-table.txt + # NOTE: This is a stretch exercise - it is optional. # TODO: Write a command to output just the names of each player along with the total of adding all of that player's scores. diff --git a/individual-shell-tools/cat/script-01.sh b/individual-shell-tools/cat/script-01.sh index c85053e0f..6b4469771 100755 --- a/individual-shell-tools/cat/script-01.sh +++ b/individual-shell-tools/cat/script-01.sh @@ -2,5 +2,7 @@ set -euo pipefail +cat ../helper-files/helper-1.txt + # 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...". diff --git a/individual-shell-tools/cat/script-02.sh b/individual-shell-tools/cat/script-02.sh index 01bbd5eab..a86fa4d8c 100755 --- a/individual-shell-tools/cat/script-02.sh +++ b/individual-shell-tools/cat/script-02.sh @@ -2,6 +2,8 @@ set -euo pipefail +cat ../helper-files/*.txt + # TODO: Write a command to output the contents of all of the files inside the helper-files directory to the terminal. # Make sure you are only calling `cat` once. # diff --git a/individual-shell-tools/cat/script-03.sh b/individual-shell-tools/cat/script-03.sh index 37573b0c1..ae2dae916 100755 --- a/individual-shell-tools/cat/script-03.sh +++ b/individual-shell-tools/cat/script-03.sh @@ -2,6 +2,8 @@ set -euo pipefail +cat -n ../helper-files/helper-3.txt + # TODO: Write a command to output the contents of the file `helper-3.txt` inside the helper-files directory to the terminal. # This time, we also want to see the line numbers in the output. # diff --git a/individual-shell-tools/cat/script-04-stretch.sh b/individual-shell-tools/cat/script-04-stretch.sh index 00fe3c48b..f3d563fa7 100755 --- a/individual-shell-tools/cat/script-04-stretch.sh +++ b/individual-shell-tools/cat/script-04-stretch.sh @@ -2,6 +2,8 @@ set -euo pipefail +cat ../helper-files/*.txt | nl + # NOTE: This is a stretch exercise - it is optional. # TODO: Write a command to output the contents of all of the files in the helper-files directory to the terminal. diff --git a/individual-shell-tools/grep/script-01.sh b/individual-shell-tools/grep/script-01.sh index fb05f42f2..8b7188f31 100755 --- a/individual-shell-tools/grep/script-01.sh +++ b/individual-shell-tools/grep/script-01.sh @@ -2,5 +2,7 @@ set -euo pipefail +grep "^Doctor:" dialogue.txt + # TODO: Write a command to output every line in dialogue.txt said by the Doctor. # The output should contain 6 lines. diff --git a/individual-shell-tools/grep/script-02.sh b/individual-shell-tools/grep/script-02.sh index df6f85640..6cda77c87 100755 --- a/individual-shell-tools/grep/script-02.sh +++ b/individual-shell-tools/grep/script-02.sh @@ -2,5 +2,7 @@ set -euo pipefail +grep -i "Doctor" dialogue.txt + # 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. diff --git a/individual-shell-tools/grep/script-03.sh b/individual-shell-tools/grep/script-03.sh index 5383fe578..8f4fba25d 100755 --- a/individual-shell-tools/grep/script-03.sh +++ b/individual-shell-tools/grep/script-03.sh @@ -2,5 +2,7 @@ set -euo pipefail +grep -c -i "Doctor" dialogue.txt + # 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. diff --git a/individual-shell-tools/grep/script-04.sh b/individual-shell-tools/grep/script-04.sh index 80ee04776..70c17a57f 100755 --- a/individual-shell-tools/grep/script-04.sh +++ b/individual-shell-tools/grep/script-04.sh @@ -2,5 +2,8 @@ set -euo pipefail + +grep -v "Hello" dialogue.txt + # 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. diff --git a/individual-shell-tools/grep/script-05.sh b/individual-shell-tools/grep/script-05.sh index 1eb538185..08df4fcfa 100755 --- a/individual-shell-tools/grep/script-05.sh +++ b/individual-shell-tools/grep/script-05.sh @@ -2,5 +2,7 @@ set -euo pipefail +grep -B 1 "cure" dialogue.txt + # 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). diff --git a/individual-shell-tools/grep/script-06.sh b/individual-shell-tools/grep/script-06.sh index 5670e3b6c..ea198611b 100755 --- a/individual-shell-tools/grep/script-06.sh +++ b/individual-shell-tools/grep/script-06.sh @@ -2,5 +2,7 @@ set -euo pipefail +grep -l "Doctor:" *.txt + # 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. diff --git a/individual-shell-tools/grep/script-07.sh b/individual-shell-tools/grep/script-07.sh index 9670ebad9..993a6a75d 100755 --- a/individual-shell-tools/grep/script-07.sh +++ b/individual-shell-tools/grep/script-07.sh @@ -2,5 +2,7 @@ set -euo pipefail +grep -c -i "^Doctor:" *.txt + # 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. diff --git a/individual-shell-tools/ls/script-01.sh b/individual-shell-tools/ls/script-01.sh index 241b62f5e..09196aa3e 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 ../ls diff --git a/individual-shell-tools/ls/script-02.sh b/individual-shell-tools/ls/script-02.sh index d0a5a10f4..89fe1d50f 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 ../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..dcfb18a35 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 ../ls ../ls/child-directory \ 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..6412051cb 100755 --- a/individual-shell-tools/ls/script-04.sh +++ b/individual-shell-tools/ls/script-04.sh @@ -12,12 +12,12 @@ sleep 1 touch "${script_dir}/child-directory/helper-3.txt" echo "First exercise (sorted newest to oldest):" - +ls -t ../ls/child-directory # 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. echo "Second exercise (sorted oldest to newest):" - +ls -tr ../ls/child-directory # 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. diff --git a/individual-shell-tools/sed/script-01.sh b/individual-shell-tools/sed/script-01.sh index 3eba6fa4d..d2ee90faa 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..649074e38 100755 --- a/individual-shell-tools/sed/script-02.sh +++ b/individual-shell-tools/sed/script-02.sh @@ -5,3 +5,6 @@ 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..17ea86f45 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 's/,\([^ ]\)/, \1/g' input.txt diff --git a/individual-shell-tools/wc/script-01.sh b/individual-shell-tools/wc/script-01.sh index c9dd6e5df..8fa77d08c 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. + + +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..45682002b 100755 --- a/individual-shell-tools/wc/script-03.sh +++ b/individual-shell-tools/wc/script-03.sh @@ -8,3 +8,5 @@ set -euo pipefail # 1 7 39 ../helper-files/helper-2.txt # 3 19 92 ../helper-files/helper-3.txt # 5 30 151 total + +wc ../helper-files/*