From 5b007a259681e1f4318aa804b38dc6eb31197cad Mon Sep 17 00:00:00 2001
From: shaghayeghfar <146011477+shaghayeghfar@users.noreply.github.com>
Date: Tue, 24 Mar 2026 19:11:58 +0000
Subject: [PATCH 1/2] complete jq exersice

---
 implement-shell-tools/cat/cat.js | 54 ++++++++++++++++++++++++++++++++
 implement-shell-tools/ls/ls.js   | 35 +++++++++++++++++++++
 jq/script-01.sh                  |  2 ++
 jq/script-02.sh                  |  2 ++
 jq/script-03.sh                  |  2 ++
 jq/script-04.sh                  |  2 ++
 jq/script-05.sh                  |  2 ++
 jq/script-06.sh                  |  2 ++
 jq/script-07.sh                  |  2 ++
 jq/script-08.sh                  |  2 ++
 jq/script-09.sh                  |  2 ++
 jq/script-10.sh                  |  2 ++
 jq/script-11.sh                  |  2 ++
 13 files changed, 111 insertions(+)
 create mode 100644 implement-shell-tools/cat/cat.js
 create mode 100644 implement-shell-tools/ls/ls.js

diff --git a/implement-shell-tools/cat/cat.js b/implement-shell-tools/cat/cat.js
new file mode 100644
index 000000000..88497a169
--- /dev/null
+++ b/implement-shell-tools/cat/cat.js
@@ -0,0 +1,54 @@
+const fs = require("fs");
+const path = require("path");
+
+// arguments
+const args = process.argv.slice(2);
+
+let isNumbered = false;
+let isNumberNonEmpty = false;
+const filePaths = [];
+
+// parse args
+args.forEach((arg) => {
+  if (arg === "-n") {
+    isNumbered = true;
+  } else if (arg === "-b") {
+    isNumberNonEmpty = true;
+  } else {
+    filePaths.push(arg);
+  }
+});
+
+// -b overrides -n
+if (isNumberNonEmpty) {
+  isNumbered = false;
+}
+
+let lineNumber = 1;
+
+// process files
+filePaths.forEach((filePath, fileIndex) => {
+  const content = fs.readFileSync(filePath, "utf-8");
+
+  // split lines but keep empty ones
+  const lines = content.split("\n");
+
+  lines.forEach((line, index) => {
+    const isLastLineOfLastFile =
+      fileIndex === filePaths.length - 1 && index === lines.length - 1;
+
+    if (isNumberNonEmpty) {
+      if (line !== "") {
+        console.log(`${lineNumber} ${line}`);
+        lineNumber++;
+      } else {
+        console.log(line);
+      }
+    } else if (isNumbered) {
+      console.log(`${lineNumber} ${line}`);
+      lineNumber++;
+    } else {
+      console.log(line);
+    }
+  });
+});
diff --git a/implement-shell-tools/ls/ls.js b/implement-shell-tools/ls/ls.js
new file mode 100644
index 000000000..d9474bf18
--- /dev/null
+++ b/implement-shell-tools/ls/ls.js
@@ -0,0 +1,35 @@
+const fs = require("fs");
+
+// Get command line arguments
+const args = process.argv.slice(2);
+
+// Default settings
+let showAll = false;
+let onePerLine = false;
+let dir = ".";
+
+// Parse arguments
+args.forEach((arg) => {
+  if (arg === "-a") {
+    showAll = true;
+  } else if (arg === "-1") {
+    onePerLine = true;
+  } else {
+    dir = arg;
+  }
+});
+
+// Read directory contents
+let files = fs.readdirSync(dir);
+
+// Filter hidden files if -a is NOT used
+if (!showAll) {
+  files = files.filter((file) => !file.startsWith("."));
+}
+
+// Output
+if (onePerLine) {
+  files.forEach((file) => console.log(file));
+} else {
+  console.log(files.join("  "));
+}
diff --git a/jq/script-01.sh b/jq/script-01.sh
index 95827f688..5b93f5852 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
\ No newline at end of file
diff --git a/jq/script-02.sh b/jq/script-02.sh
index 21544d67b..c1d25ab82 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 | join(", ")' person.json
\ No newline at end of file
diff --git a/jq/script-03.sh b/jq/script-03.sh
index 3566f03ba..3f9bf26e1 100755
--- a/jq/script-03.sh
+++ b/jq/script-03.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, 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
\ No newline at end of file
diff --git a/jq/script-04.sh b/jq/script-04.sh
index 015997e18..756dd6702 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
\ No newline at end of file
diff --git a/jq/script-05.sh b/jq/script-05.sh
index 993fc9ee3..37069392e 100755
--- a/jq/script-05.sh
+++ b/jq/script-05.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 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
\ No newline at end of file
diff --git a/jq/script-06.sh b/jq/script-06.sh
index 8b6e74c52..a86fc30fb 100755
--- a/jq/script-06.sh
+++ b/jq/script-06.sh
@@ -6,3 +6,5 @@ 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" with no quotes.
+
+jq -r '.[] | "\(.name) \(.scores[0])"' scores.json
\ No newline at end of file
diff --git a/jq/script-07.sh b/jq/script-07.sh
index d43f93d1b..ea187a89e 100755
--- a/jq/script-07.sh
+++ b/jq/script-07.sh
@@ -6,3 +6,5 @@ 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
\ No newline at end of file
diff --git a/jq/script-08.sh b/jq/script-08.sh
index 6671fd1ba..2a2597390 100755
--- a/jq/script-08.sh
+++ b/jq/script-08.sh
@@ -6,3 +6,5 @@ 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" with no quotes.
+
+jq -r '.[] | "\(.name) \(.scores | length)"' scores.json
\ No newline at end of file
diff --git a/jq/script-09.sh b/jq/script-09.sh
index c2536a536..219ca4b47 100755
--- a/jq/script-09.sh
+++ b/jq/script-09.sh
@@ -6,3 +6,5 @@ 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
\ No newline at end of file
diff --git a/jq/script-10.sh b/jq/script-10.sh
index 8e9d75f07..47c97b79d 100755
--- a/jq/script-10.sh
+++ b/jq/script-10.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 players' first scores.
 # Your output should be exactly the number 54.
+
+jq -r 'map(.scores[0]) | add' scores.json
\ No newline at end of file
diff --git a/jq/script-11.sh b/jq/script-11.sh
index d2337a6b2..12e049235 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
\ No newline at end of file

From e7cadcef17c3bbc7cfb26bb43c5c9af15af62567 Mon Sep 17 00:00:00 2001
From: shaghayeghfar <146011477+shaghayeghfar@users.noreply.github.com>
Date: Tue, 24 Mar 2026 19:39:12 +0000
Subject: [PATCH 2/2] Remove unrelated files

---
 implement-shell-tools/cat/cat.js | 54 --------------------------------
 implement-shell-tools/ls/ls.js   | 35 ---------------------
 2 files changed, 89 deletions(-)
 delete mode 100644 implement-shell-tools/cat/cat.js
 delete mode 100644 implement-shell-tools/ls/ls.js

diff --git a/implement-shell-tools/cat/cat.js b/implement-shell-tools/cat/cat.js
deleted file mode 100644
index 88497a169..000000000
--- a/implement-shell-tools/cat/cat.js
+++ /dev/null
@@ -1,54 +0,0 @@
-const fs = require("fs");
-const path = require("path");
-
-// arguments
-const args = process.argv.slice(2);
-
-let isNumbered = false;
-let isNumberNonEmpty = false;
-const filePaths = [];
-
-// parse args
-args.forEach((arg) => {
-  if (arg === "-n") {
-    isNumbered = true;
-  } else if (arg === "-b") {
-    isNumberNonEmpty = true;
-  } else {
-    filePaths.push(arg);
-  }
-});
-
-// -b overrides -n
-if (isNumberNonEmpty) {
-  isNumbered = false;
-}
-
-let lineNumber = 1;
-
-// process files
-filePaths.forEach((filePath, fileIndex) => {
-  const content = fs.readFileSync(filePath, "utf-8");
-
-  // split lines but keep empty ones
-  const lines = content.split("\n");
-
-  lines.forEach((line, index) => {
-    const isLastLineOfLastFile =
-      fileIndex === filePaths.length - 1 && index === lines.length - 1;
-
-    if (isNumberNonEmpty) {
-      if (line !== "") {
-        console.log(`${lineNumber} ${line}`);
-        lineNumber++;
-      } else {
-        console.log(line);
-      }
-    } else if (isNumbered) {
-      console.log(`${lineNumber} ${line}`);
-      lineNumber++;
-    } else {
-      console.log(line);
-    }
-  });
-});
diff --git a/implement-shell-tools/ls/ls.js b/implement-shell-tools/ls/ls.js
deleted file mode 100644
index d9474bf18..000000000
--- a/implement-shell-tools/ls/ls.js
+++ /dev/null
@@ -1,35 +0,0 @@
-const fs = require("fs");
-
-// Get command line arguments
-const args = process.argv.slice(2);
-
-// Default settings
-let showAll = false;
-let onePerLine = false;
-let dir = ".";
-
-// Parse arguments
-args.forEach((arg) => {
-  if (arg === "-a") {
-    showAll = true;
-  } else if (arg === "-1") {
-    onePerLine = true;
-  } else {
-    dir = arg;
-  }
-});
-
-// Read directory contents
-let files = fs.readdirSync(dir);
-
-// Filter hidden files if -a is NOT used
-if (!showAll) {
-  files = files.filter((file) => !file.startsWith("."));
-}
-
-// Output
-if (onePerLine) {
-  files.forEach((file) => console.log(file));
-} else {
-  console.log(files.join("  "));
-}