diff --git a/jq/script-01.sh b/jq/script-01.sh
index 95827f68..0b4ef458 100755
--- a/jq/script-01.sh
+++ b/jq/script-01.sh
@@ -5,3 +5,5 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the name of the person.
 # Your output should be exactly the string "Selma", but should not contain any quote characters.
+
+jq -r '.name' person.json
diff --git a/jq/script-02.sh b/jq/script-02.sh
index 21544d67..01343397 100755
--- a/jq/script-02.sh
+++ b/jq/script-02.sh
@@ -5,3 +5,5 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the address of the person, all on one line, with a comma between each line.
 # Your output should be exactly the string "35 Fashion Street, London, E1 6PX", but should not contain any quote characters.
+
+jq -r '.address | "\(.[0]), \(.[1]), \(.[2])"' person.json
diff --git a/jq/script-03.sh b/jq/script-03.sh
index 3566f03b..1f8b435a 100755
--- a/jq/script-03.sh
+++ b/jq/script-03.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the name of the person, then a comma, then their profession.
 # Your output should be exactly the string "Selma, Software Engineer", but should not contain any quote characters.
+jq -r '"\(.name), \(.profession)"' person.json
diff --git a/jq/script-04.sh b/jq/script-04.sh
index 015997e1..bba1e296 100755
--- a/jq/script-04.sh
+++ b/jq/script-04.sh
@@ -6,3 +6,5 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player, one per line.
 # Your output should contain 6 lines, each with just one word on it.
 # Your output should not contain any quote characters.
+
+jq -r '.[].name' scores.json
diff --git a/jq/script-05.sh b/jq/script-05.sh
index 993fc9ee..ab78fbad 100755
--- a/jq/script-05.sh
+++ b/jq/script-05.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # 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.
+jq -r '.[] | "\(.name) \(.city)"' scores.json
diff --git a/jq/script-06.sh b/jq/script-06.sh
index 8b6e74c5..47fee35b 100755
--- a/jq/script-06.sh
+++ b/jq/script-06.sh
@@ -6,3 +6,4 @@ 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" with no quotes.
+jq -r '.[] | "\(.name) \(.scores[0])"' scores.json
diff --git a/jq/script-07.sh b/jq/script-07.sh
index d43f93d1..f20ab3d7 100755
--- a/jq/script-07.sh
+++ b/jq/script-07.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the score from their last attempt.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 4" with no quotes.
+jq -r '.[] | "\(.name) \(.scores[-1])"' scores.json
diff --git a/jq/script-08.sh b/jq/script-08.sh
index 6671fd1b..165e67a4 100755
--- a/jq/script-08.sh
+++ b/jq/script-08.sh
@@ -6,3 +6,4 @@ 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" with no quotes.
+jq -r '.[] | "\(.name) \(.scores | length)"' scores.json
diff --git a/jq/script-09.sh b/jq/script-09.sh
index c2536a53..3ce4c2b7 100755
--- a/jq/script-09.sh
+++ b/jq/script-09.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the total scores from all of their games added together.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 15" with no quotes.
+jq -r '.[] | "\(.name) \(.scores | add)"' scores.json
diff --git a/jq/script-10.sh b/jq/script-10.sh
index 8e9d75f0..8b124325 100755
--- a/jq/script-10.sh
+++ b/jq/script-10.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the total of adding together all players' first scores.
 # Your output should be exactly the number 54.
+jq -r '[.[].scores[0]] | add' scores.json
diff --git a/jq/script-11.sh b/jq/script-11.sh
index d2337a6b..9f9708c4 100755
--- a/jq/script-11.sh
+++ b/jq/script-11.sh
@@ -5,3 +5,5 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the total of adding together all scores from all games from all players.
 # Your output should be exactly the number 164.
+
+jq -r '[.[].scores[]] | add' scores.json
diff --git a/shell-pipelines/ls-grep/script-01.sh b/shell-pipelines/ls-grep/script-01.sh
index 8c7d968a..0de960ba 100755
--- a/shell-pipelines/ls-grep/script-01.sh
+++ b/shell-pipelines/ls-grep/script-01.sh
@@ -4,3 +4,5 @@ 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.
 # Your output should contain 11 files.
+
+ls sample-files | grep "[A-Z]"
diff --git a/shell-pipelines/ls-grep/script-02.sh b/shell-pipelines/ls-grep/script-02.sh
index 16f5f71d..30eb3c5c 100755
--- a/shell-pipelines/ls-grep/script-02.sh
+++ b/shell-pipelines/ls-grep/script-02.sh
@@ -4,3 +4,5 @@ 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.
 # Your output should contain 10 files.
+
+ls sample-files | grep "^[A-Z]"
diff --git a/shell-pipelines/ls-grep/script-03.sh b/shell-pipelines/ls-grep/script-03.sh
index a302ab03..421a744c 100755
--- a/shell-pipelines/ls-grep/script-03.sh
+++ b/shell-pipelines/ls-grep/script-03.sh
@@ -4,3 +4,5 @@ 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 and doesn't contain any other upper case letters.
 # 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 c000b7e3..460bc4ed 100755
--- a/shell-pipelines/ls-grep/script-04.sh
+++ b/shell-pipelines/ls-grep/script-04.sh
@@ -4,3 +4,6 @@ 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 "^[A-Z][a-z]*$"
+ls sample-files | grep -c "^[A-Z][a-z]*$"
diff --git a/shell-pipelines/sort-uniq-head-tail/10 b/shell-pipelines/sort-uniq-head-tail/10
new file mode 100644
index 00000000..e69de29b
diff --git a/shell-pipelines/sort-uniq-head-tail/script-01.sh b/shell-pipelines/sort-uniq-head-tail/script-01.sh
index 171e1f98..845ad89d 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
diff --git a/shell-pipelines/sort-uniq-head-tail/script-02.sh b/shell-pipelines/sort-uniq-head-tail/script-02.sh
index 29c3c252..79fd2b6d 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-02.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-02.sh
@@ -5,3 +5,5 @@ 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.
 # The first line of your output should be "Basia London 22 9 6" (with no quotes).
+
+sort -k2 -r scores-table.txt
diff --git a/shell-pipelines/sort-uniq-head-tail/script-03.sh b/shell-pipelines/sort-uniq-head-tail/script-03.sh
index bcbaf342..349c65d3 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 -r -n scores-table.txt | head -n 3
diff --git a/shell-pipelines/sort-uniq-head-tail/script-04.sh b/shell-pipelines/sort-uniq-head-tail/script-04.sh
index 65a5cfba..8ab4fc33 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-04.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-04.sh
@@ -5,3 +5,5 @@ 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.
 # Your output should be: "Piotr Glasgow 15 2 25 11 8" (without quotes).
+
+sort -k3,3 -n -r scores-table.txt | head -n 2 | tail -n 1
diff --git a/shell-pipelines/sort-uniq-head-tail/script-05.sh b/shell-pipelines/sort-uniq-head-tail/script-05.sh
index a93cd9f9..7bba7d19 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-05.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-05.sh
@@ -6,3 +6,5 @@ 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 events.txt | uniq
diff --git a/shell-pipelines/sort-uniq-head-tail/script-06.sh b/shell-pipelines/sort-uniq-head-tail/script-06.sh
index 715c7ae5..d7bdc6bd 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-06.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-06.sh
@@ -5,3 +5,7 @@ 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.
+
+echo " $(grep -c Entry events.txt) Entry events"
+
+echo  " $(grep -c Exit events.txt) 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 7fd07e1f..24289605 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-07.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-07.sh
@@ -6,3 +6,6 @@ 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.
+echo "Entry: $(grep -c Entry events-with-timestamps.txt)"
+
+echo  "Exit: $(grep -c Exit events-with-timestamps.txt) "
diff --git a/shell-pipelines/tr/script-01.sh b/shell-pipelines/tr/script-01.sh
index 8bb0211e..63923210 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 "!" "."
diff --git a/shell-pipelines/tr/script-02.sh b/shell-pipelines/tr/script-02.sh
index cf3a503a..2bef7b1a 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).
+
+cat text.txt | tr "yYzZ" "zZyY"
diff --git a/shell-pipelines/tr/text.txt b/shell-pipelines/tr/text.txt
index d1beda8b..d43e7276 100644
--- a/shell-pipelines/tr/text.txt
+++ b/shell-pipelines/tr/text.txt
@@ -2,7 +2,7 @@ Dear Yara,
 
 Mz apologies for sending this response so late. As zou know, there's been a lot going on!
 
-Unfortunatelz I don't think I'll be able to make it to Yimbabwe, but but sounds amaying!
+Unfortunatelz I don't think I'll be able to make it to Yimbabwe, but sounds amaying!
 
 Hope zou're doing well, and enjoz the trip!