From a7e135ffe144c2801f9906aebcae2be22b390c9d Mon Sep 17 00:00:00 2001
From: kirill1261 <174480879+kirill1261@users.noreply.github.com>
Date: Wed, 24 Jul 2024 18:46:28 +0300
Subject: [PATCH 01/31] strlen

---
 courses/cunix/ex01/src/strlen.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 courses/cunix/ex01/src/strlen.c

diff --git a/courses/cunix/ex01/src/strlen.c b/courses/cunix/ex01/src/strlen.c
new file mode 100644
index 00000000..19b1e2b1
--- /dev/null
+++ b/courses/cunix/ex01/src/strlen.c
@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+size_t my_strlen(const char *str);
+
+int main() {
+    const char *test_str = "Hello, World!";
+    size_t length = my_strlen(test_str);
+    
+    printf("Length of '%s' is %zu\n", test_str, length);
+    return 0;
+}
\ No newline at end of file

From 7f550d3f1d480eecf930748f182a90fddae27fdf Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 24 Jul 2024 19:13:17 +0300
Subject: [PATCH 02/31] Update strlen.c

---
 courses/cunix/ex01/src/strlen.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/courses/cunix/ex01/src/strlen.c b/courses/cunix/ex01/src/strlen.c
index 19b1e2b1..10aca0d6 100644
--- a/courses/cunix/ex01/src/strlen.c
+++ b/courses/cunix/ex01/src/strlen.c
@@ -6,6 +6,6 @@ int main() {
     const char *test_str = "Hello, World!";
     size_t length = my_strlen(test_str);
     
-    printf("Length of '%s' is %zu\n", test_str, length);
+    printf( test_str, length);
     return 0;
-}
\ No newline at end of file
+}

From d9e1a20b663827310a5450a3631b385342aa0038 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 24 Jul 2024 19:20:34 +0300
Subject: [PATCH 03/31] Update strlen.c

---
 courses/cunix/ex01/src/strlen.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/courses/cunix/ex01/src/strlen.c b/courses/cunix/ex01/src/strlen.c
index 10aca0d6..34fde5ef 100644
--- a/courses/cunix/ex01/src/strlen.c
+++ b/courses/cunix/ex01/src/strlen.c
@@ -1,11 +1,11 @@
 #include <stdio.h>
-
-size_t my_strlen(const char *str);
+#include "my_strlen.h" 
 
 int main() {
     const char *test_str = "Hello, World!";
-    size_t length = my_strlen(test_str);
-    
-    printf( test_str, length);
+    int length = my_strlen(test_str);
+
+    printf("Length of the string is: %d\n", length);
+
     return 0;
 }

From 1fcc9f848eb974f299b111e988cc2d31429eaade Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:44:07 +0300
Subject: [PATCH 04/31] Update ex02

---
 courses/bash/ex02/kirill  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 courses/bash/ex02/kirill 

diff --git a/courses/bash/ex02/kirill  b/courses/bash/ex02/kirill 
new file mode 100644
index 00000000..023ec6c6
--- /dev/null
+++ b/courses/bash/ex02/kirill 	
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+if [ "$#" -ne 1 ]; then
+    echo "Usage: $0 'pattern'"
+    exit 1
+fi
+
+pattern=$1
+
+find . -type d | while read -r dir; do
+    # Get the relative path
+    rel_path=${dir#./}
+    
+    if echo "$rel_path" | grep -w -q "$pattern"; then
+        echo "$rel_path"
+    fi
+done
\ No newline at end of file

From cd15fb029b1c72bd8284b4387ed48c1b658fe48d Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:46:17 +0300
Subject: [PATCH 05/31] Update ex03

---
 courses/bash/ex03/kirill | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 courses/bash/ex03/kirill

diff --git a/courses/bash/ex03/kirill b/courses/bash/ex03/kirill
new file mode 100644
index 00000000..53b61c37
--- /dev/null
+++ b/courses/bash/ex03/kirill
@@ -0,0 +1,31 @@
+ех3 #!/bin/bash
+
+if [ "$#" -ne 4 ]; then
+    echo "Usage: $0 filename keyword1 keyword2 keyword3" >&2
+    exit 1
+fi
+
+filename=$1
+keyword1=$2
+keyword2=$3
+keyword3=$4
+
+if [ ! -r "$filename" ]; then
+    exit 1
+fi
+
+search_keyword() {
+    local keyword=$1
+    local matches
+    matches=$(grep -c "$keyword" "$filename")
+    echo "Keyword: $keyword"
+    echo "Number of matches: $matches"
+    grep "$keyword" "$filename"
+    echo ""
+}
+
+search_keyword "$keyword1"
+search_keyword "$keyword2"
+search_keyword "$keyword3"
+
+exit 0
\ No newline at end of file

From 1e3c238d2be093b36e0e895f8b0d83dd2622db2a Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:47:13 +0300
Subject: [PATCH 06/31] Update kirill

---
 courses/bash/ex03/kirill | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/courses/bash/ex03/kirill b/courses/bash/ex03/kirill
index 53b61c37..cb4125cb 100644
--- a/courses/bash/ex03/kirill
+++ b/courses/bash/ex03/kirill
@@ -1,4 +1,4 @@
-ех3 #!/bin/bash
+ #!/bin/bash
 
 if [ "$#" -ne 4 ]; then
     echo "Usage: $0 filename keyword1 keyword2 keyword3" >&2

From a734094677eb52b2f70fa5f2e0556623956b70ee Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:48:04 +0300
Subject: [PATCH 07/31] Update ex04

---
 courses/bash/ex04/kirill | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 courses/bash/ex04/kirill

diff --git a/courses/bash/ex04/kirill b/courses/bash/ex04/kirill
new file mode 100644
index 00000000..52347d65
--- /dev/null
+++ b/courses/bash/ex04/kirill
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# Check if the correct number of arguments is provided
+if [ "$#" -ne 1 ]; then
+    echo "Usage: $0 pattern" >&2
+    exit 1
+fi
+
+pattern=$1
+
+# Use find to search for all files in or below the current working directory
+find . -type f | while read -r file; do
+    # Use grep to search for the pattern in each file and print file path and line number
+    grep -Hn "$pattern" "$file"
+done
+
+exit 0
\ No newline at end of file

From 9dba5ab64eebebdbac66357ee671747c8f4938db Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:49:08 +0300
Subject: [PATCH 08/31] Update kirill

---
 courses/bash/ex04/kirill | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/courses/bash/ex04/kirill b/courses/bash/ex04/kirill
index 52347d65..317e7c2c 100644
--- a/courses/bash/ex04/kirill
+++ b/courses/bash/ex04/kirill
@@ -1,6 +1,5 @@
 #!/bin/bash
 
-# Check if the correct number of arguments is provided
 if [ "$#" -ne 1 ]; then
     echo "Usage: $0 pattern" >&2
     exit 1
@@ -8,9 +7,8 @@ fi
 
 pattern=$1
 
-# Use find to search for all files in or below the current working directory
 find . -type f | while read -r file; do
-    # Use grep to search for the pattern in each file and print file path and line number
+    
     grep -Hn "$pattern" "$file"
 done
 

From 47be7b33febd3ef78eba205c0aaceb5f3ef0af0e Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:49:57 +0300
Subject: [PATCH 09/31] Update ex05

---
 courses/bash/ex05/kirill  | 55 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 courses/bash/ex05/kirill 

diff --git a/courses/bash/ex05/kirill  b/courses/bash/ex05/kirill 
new file mode 100644
index 00000000..77e9e1e2
--- /dev/null
+++ b/courses/bash/ex05/kirill 	
@@ -0,0 +1,55 @@
+ #!/bin/bash
+
+# Check if at least one argument is provided
+if [ "$#" -lt 2 ]; then
+    echo "Usage: $0 {-m|-s|-e|-o} number1 number2 ..." >&2
+    exit 1
+fi
+
+# Get the operation argument
+operation=$1
+shift
+
+# Initialize variables
+sum=0
+count=0
+even_sum=0
+odd_sum=0
+
+# Loop through all the numbers provided
+for number in "$@"; do
+    sum=$(echo "$sum + $number" | bc)
+    count=$((count + 1))
+    if [ $((number % 2)) -eq 0 ]; then
+        even_sum=$(echo "$even_sum + $number" | bc)
+    else
+        odd_sum=$(echo "$odd_sum + $number" | bc)
+    fi
+done
+
+# Perform the required operation
+case $operation in
+    -s)
+        echo "Sum: $sum"
+        ;;
+    -e)
+        echo "Sum of even numbers: $even_sum"
+        ;;
+    -o)
+        echo "Sum of odd numbers: $odd_sum"
+        ;;
+    -m)
+        if [ $count -ne 0 ]; then
+            mean=$(echo "scale=2; $sum / $count" | bc)
+            echo "Mean: $mean"
+        else
+            echo "No numbers provided to calculate mean"
+        fi
+        ;;
+    *)
+        echo "Invalid option. Usage: $0 {-m|-s|-e|-o} number1 number2 ..." >&2
+        exit 1
+        ;;
+esac
+
+exit 0
\ No newline at end of file

From e1480a4197642adebd3f98b5183e958b71e625a0 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:51:35 +0300
Subject: [PATCH 10/31] Update kirill

---
 courses/bash/ex05/kirill  | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/courses/bash/ex05/kirill  b/courses/bash/ex05/kirill 
index 77e9e1e2..cf7aa5a1 100644
--- a/courses/bash/ex05/kirill 	
+++ b/courses/bash/ex05/kirill 	
@@ -1,22 +1,18 @@
  #!/bin/bash
 
-# Check if at least one argument is provided
 if [ "$#" -lt 2 ]; then
     echo "Usage: $0 {-m|-s|-e|-o} number1 number2 ..." >&2
     exit 1
 fi
 
-# Get the operation argument
 operation=$1
 shift
 
-# Initialize variables
 sum=0
 count=0
 even_sum=0
 odd_sum=0
 
-# Loop through all the numbers provided
 for number in "$@"; do
     sum=$(echo "$sum + $number" | bc)
     count=$((count + 1))
@@ -27,7 +23,6 @@ for number in "$@"; do
     fi
 done
 
-# Perform the required operation
 case $operation in
     -s)
         echo "Sum: $sum"

From fe18281456d6ac77d0a394769896c11e58d784ab Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:54:21 +0300
Subject: [PATCH 11/31] Update ex06

---
 courses/bash/ex06/kirill | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 courses/bash/ex06/kirill

diff --git a/courses/bash/ex06/kirill b/courses/bash/ex06/kirill
new file mode 100644
index 00000000..ede58089
--- /dev/null
+++ b/courses/bash/ex06/kirill
@@ -0,0 +1,17 @@
+ #!/bin/bash
+
+map() {
+    if [ "$#" -lt 2 ]; then
+        echo "Usage: map command arg1 arg2 ..."
+        return 1
+    fi
+
+    command=$1
+    shift
+
+    for arg in "$@"; do
+        $command "$arg"
+    done
+}
+
+

From b5c8f760ba14dbcbdefb9e6baf0123f54c1a095e Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:55:18 +0300
Subject: [PATCH 12/31] Update ex07

---
 courses/bash/ex07/kirill | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 courses/bash/ex07/kirill

diff --git a/courses/bash/ex07/kirill b/courses/bash/ex07/kirill
new file mode 100644
index 00000000..e09145a5
--- /dev/null
+++ b/courses/bash/ex07/kirill
@@ -0,0 +1,5 @@
+head -n <number_of_lines> surnames.txt > surnames_n_lines.txt
+
+grep "Q-Chem" surnames_n_lines.txt | sed -e 's/[[:alpha:]]\.//g' -e 's/[^a-zA-Z,-]//g' -e 's/,/\n/g'
+
+head -n <number_of_lines> surnames.txt > surnames_n_lines.txt && grep "Q-Chem" surnames_n_lines.txt | sed -e 's/[[:alpha:]]\.//g' -e 's/[^a-zA-Z,-]//g' -e 's/,/\n/g'
\ No newline at end of file

From c809e7fd3dfd1e6d071a7c4138af8e3147bf874e Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:55:51 +0300
Subject: [PATCH 13/31] Update kirill

---
 courses/bash/ex07/kirill | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/courses/bash/ex07/kirill b/courses/bash/ex07/kirill
index e09145a5..e69de29b 100644
--- a/courses/bash/ex07/kirill
+++ b/courses/bash/ex07/kirill
@@ -1,5 +0,0 @@
-head -n <number_of_lines> surnames.txt > surnames_n_lines.txt
-
-grep "Q-Chem" surnames_n_lines.txt | sed -e 's/[[:alpha:]]\.//g' -e 's/[^a-zA-Z,-]//g' -e 's/,/\n/g'
-
-head -n <number_of_lines> surnames.txt > surnames_n_lines.txt && grep "Q-Chem" surnames_n_lines.txt | sed -e 's/[[:alpha:]]\.//g' -e 's/[^a-zA-Z,-]//g' -e 's/,/\n/g'
\ No newline at end of file

From ae46c7446e400cc46ccf48cd5a6488dfb7466d7c Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:57:42 +0300
Subject: [PATCH 14/31] Update ex09

---
 courses/bash/ex09/kirill | 79 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 courses/bash/ex09/kirill

diff --git a/courses/bash/ex09/kirill b/courses/bash/ex09/kirill
new file mode 100644
index 00000000..ae417d9a
--- /dev/null
+++ b/courses/bash/ex09/kirill
@@ -0,0 +1,79 @@
+#!/bin/bash
+
+usage() {
+    echo "Usage: $0 [OPTIONS] FILE"
+    echo "Options:"
+    echo "  -u, --url      Extract URLs from the file"
+    echo "  -e, --email    Extract emails from the file"
+    echo "  -h, --help     Display this help and exit"
+}
+
+extract_urls() {
+    grep -oE 'https?://[^\s/$.?#].[^\s]*' "$1"
+}
+
+extract_emails() {
+    grep -oE '[\w._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}' "$1"
+}
+
+options=$(getopt -o ueh --long url,email,help -- "$@")
+if [ $? -ne 0 ]; then
+    usage
+    exit 1
+fi
+
+eval set -- "$options"
+
+url_flag=false
+email_flag=false
+
+while true; do
+    case "$1" in
+        -u | --url)
+            url_flag=true
+            shift
+            ;;
+        -e | --email)
+            email_flag=true
+            shift
+            ;;
+        -h | --help)
+            usage
+            exit 0
+            ;;
+        --)
+            shift
+            break
+            ;;
+        *)
+            usage
+            exit 1
+            ;;
+    esac
+done
+
+ is provided
+if ! $url_flag && ! $email_flag; then
+    echo "Error: You must specify at least one option (--url or --email)."
+    usage
+    exit 1
+fi
+
+
+if [ $# -ne 1 ]; then
+    echo "Error: You must specify a file."
+    usage
+    exit 1
+fi
+
+ file
+file="$1"
+if $url_flag; then
+    echo "Extracting URLs from $file:"
+    extract_urls "$file"
+fi
+
+if $email_flag; then
+    echo "Extracting emails from $file:"
+    extract_emails "$file"
+fi
\ No newline at end of file

From 5a5eb1e5a9fe2b319b5ca6650144e13a4f61ad19 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Thu, 25 Jul 2024 12:59:29 +0300
Subject: [PATCH 15/31] Update ex10

---
 courses/bash/ex10/kirill | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 courses/bash/ex10/kirill

diff --git a/courses/bash/ex10/kirill b/courses/bash/ex10/kirill
new file mode 100644
index 00000000..ff2b3679
--- /dev/null
+++ b/courses/bash/ex10/kirill
@@ -0,0 +1,13 @@
+#!/bin/bash
+ '
+    BEGIN {
+      
+        line_count = 0;
+    }
+    {
+        line_count++;
+    }
+    END {
+        print line_count;
+    }
+' "$@"
\ No newline at end of file

From 3269cc25480e6221fdf7a19acef2dc269f24c312 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Mon, 5 Aug 2024 17:55:30 +0300
Subject: [PATCH 16/31] Update strlen.c

---
 courses/cunix/ex01/src/strlen.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/courses/cunix/ex01/src/strlen.c b/courses/cunix/ex01/src/strlen.c
index 34fde5ef..a777d22f 100644
--- a/courses/cunix/ex01/src/strlen.c
+++ b/courses/cunix/ex01/src/strlen.c
@@ -1,11 +1,15 @@
 #include <stdio.h>
-#include "my_strlen.h" 
+size_t my_strlen(const char *str) {
+    const char *s = str;
+    while (*s != '\0') {
+        s++;
+    }
+    return s - str;
+}
 
 int main() {
-    const char *test_str = "Hello, World!";
-    int length = my_strlen(test_str);
-
-    printf("Length of the string is: %d\n", length);
-
+    const char *my_string = "Hello, World!";
+    size_t length = my_strlen(my_string);
+    printf("Length of the string is %zu\n", length);
     return 0;
 }

From 9a3b81021b06f999b422a4bb31947d18363ae797 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Tue, 6 Aug 2024 10:11:19 +0300
Subject: [PATCH 17/31] Rename kirill  to ex01.sh

---
 courses/bash/ex02/{kirill  => ex01.sh} | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename courses/bash/ex02/{kirill  => ex01.sh} (98%)

diff --git a/courses/bash/ex02/kirill  b/courses/bash/ex02/ex01.sh
similarity index 98%
rename from courses/bash/ex02/kirill 
rename to courses/bash/ex02/ex01.sh
index 023ec6c6..18af4b5b 100644
--- a/courses/bash/ex02/kirill 	
+++ b/courses/bash/ex02/ex01.sh
@@ -14,4 +14,4 @@ find . -type d | while read -r dir; do
     if echo "$rel_path" | grep -w -q "$pattern"; then
         echo "$rel_path"
     fi
-done
\ No newline at end of file
+done

From ef89bcd9d55d93632c270523368ce6cd0c45614c Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 14:19:24 +0300
Subject: [PATCH 18/31] Rename kirill to ex03.sh

---
 courses/bash/ex03/{kirill => ex03.sh} | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename courses/bash/ex03/{kirill => ex03.sh} (98%)

diff --git a/courses/bash/ex03/kirill b/courses/bash/ex03/ex03.sh
similarity index 98%
rename from courses/bash/ex03/kirill
rename to courses/bash/ex03/ex03.sh
index cb4125cb..8d3ec4f0 100644
--- a/courses/bash/ex03/kirill
+++ b/courses/bash/ex03/ex03.sh
@@ -28,4 +28,4 @@ search_keyword "$keyword1"
 search_keyword "$keyword2"
 search_keyword "$keyword3"
 
-exit 0
\ No newline at end of file
+exit 0

From 214dc52d434f47b26c2bb333bd3fbe57359444a1 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 14:55:39 +0300
Subject: [PATCH 19/31] Create ex02.sh

---
 courses/bash/ex02/ex02.sh | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 courses/bash/ex02/ex02.sh

diff --git a/courses/bash/ex02/ex02.sh b/courses/bash/ex02/ex02.sh
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/courses/bash/ex02/ex02.sh
@@ -0,0 +1 @@
+

From 981d7a538a0ee5af34f01f5615b4d68d645f3b3d Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 15:01:13 +0300
Subject: [PATCH 20/31] Update ex02.sh

---
 courses/bash/ex02/ex02.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/courses/bash/ex02/ex02.sh b/courses/bash/ex02/ex02.sh
index 8b137891..5f7bb8f4 100644
--- a/courses/bash/ex02/ex02.sh
+++ b/courses/bash/ex02/ex02.sh
@@ -1 +1,15 @@
+#!/bin/bash
 
+if [ "$#" -ne 1 ]; then
+    echo "Usage: $0 'pattern'"
+    exit 1
+fi
+
+pattern=$1
+
+find . -type d | while read -r dir; do
+    rel_path=${dir#./}
+    if echo "$rel_path" | grep -w -q "$pattern"; then
+        echo "$rel_path"
+    fi
+done

From ae0416cada22e438d079b1d0ac4d6e8edc894ecd Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 15:23:34 +0300
Subject: [PATCH 21/31] Rename kirill to ex04.sh

---
 courses/bash/ex04/{kirill => ex04.sh} | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename courses/bash/ex04/{kirill => ex04.sh} (96%)

diff --git a/courses/bash/ex04/kirill b/courses/bash/ex04/ex04.sh
similarity index 96%
rename from courses/bash/ex04/kirill
rename to courses/bash/ex04/ex04.sh
index 317e7c2c..d8f3dc53 100644
--- a/courses/bash/ex04/kirill
+++ b/courses/bash/ex04/ex04.sh
@@ -12,4 +12,4 @@ find . -type f | while read -r file; do
     grep -Hn "$pattern" "$file"
 done
 
-exit 0
\ No newline at end of file
+exit 0

From df4c153c42c798168e737b557baae3786d2e30b8 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 15:28:29 +0300
Subject: [PATCH 22/31] Rename kirill  to ex05.sh

---
 courses/bash/ex05/{kirill  => ex05.sh} | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename courses/bash/ex05/{kirill  => ex05.sh} (99%)

diff --git a/courses/bash/ex05/kirill  b/courses/bash/ex05/ex05.sh
similarity index 99%
rename from courses/bash/ex05/kirill 
rename to courses/bash/ex05/ex05.sh
index cf7aa5a1..d911e4bf 100644
--- a/courses/bash/ex05/kirill 	
+++ b/courses/bash/ex05/ex05.sh
@@ -47,4 +47,4 @@ case $operation in
         ;;
 esac
 
-exit 0
\ No newline at end of file
+exit 0

From ae29dcdc9fbc286ab0ccddc1890e160738e6e9aa Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 15:30:33 +0300
Subject: [PATCH 23/31] Rename kirill to ex06.sh

---
 courses/bash/ex06/{kirill => ex06.sh} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename courses/bash/ex06/{kirill => ex06.sh} (100%)

diff --git a/courses/bash/ex06/kirill b/courses/bash/ex06/ex06.sh
similarity index 100%
rename from courses/bash/ex06/kirill
rename to courses/bash/ex06/ex06.sh

From 863cd909b49a12cae7ef41056d726914432275a8 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 15:31:55 +0300
Subject: [PATCH 24/31] Rename kirill to ex09.sh

---
 courses/bash/ex09/{kirill => ex09.sh} | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename courses/bash/ex09/{kirill => ex09.sh} (99%)

diff --git a/courses/bash/ex09/kirill b/courses/bash/ex09/ex09.sh
similarity index 99%
rename from courses/bash/ex09/kirill
rename to courses/bash/ex09/ex09.sh
index ae417d9a..d42a3848 100644
--- a/courses/bash/ex09/kirill
+++ b/courses/bash/ex09/ex09.sh
@@ -76,4 +76,4 @@ fi
 if $email_flag; then
     echo "Extracting emails from $file:"
     extract_emails "$file"
-fi
\ No newline at end of file
+fi

From 82a79d32ab0ed50976cfc85885fa44db1f2cbb30 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Wed, 7 Aug 2024 15:36:42 +0300
Subject: [PATCH 25/31] Delete courses/bash/ex10/kirill

---
 courses/bash/ex10/kirill | 13 -------------
 1 file changed, 13 deletions(-)
 delete mode 100644 courses/bash/ex10/kirill

diff --git a/courses/bash/ex10/kirill b/courses/bash/ex10/kirill
deleted file mode 100644
index ff2b3679..00000000
--- a/courses/bash/ex10/kirill
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/bash
- '
-    BEGIN {
-      
-        line_count = 0;
-    }
-    {
-        line_count++;
-    }
-    END {
-        print line_count;
-    }
-' "$@"
\ No newline at end of file

From 918da52debb07f46db89b24f55ca56b0d6396dff Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Sun, 18 Aug 2024 13:13:53 +0300
Subject: [PATCH 26/31] Update ex02.sh

---
 courses/bash/ex02/ex02.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/courses/bash/ex02/ex02.sh b/courses/bash/ex02/ex02.sh
index 5f7bb8f4..18af4b5b 100644
--- a/courses/bash/ex02/ex02.sh
+++ b/courses/bash/ex02/ex02.sh
@@ -8,7 +8,9 @@ fi
 pattern=$1
 
 find . -type d | while read -r dir; do
+    # Get the relative path
     rel_path=${dir#./}
+    
     if echo "$rel_path" | grep -w -q "$pattern"; then
         echo "$rel_path"
     fi

From 7c8f6eaa1644cd008daed6d9926e9e2a098ef768 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Mon, 19 Aug 2024 00:48:31 +0300
Subject: [PATCH 27/31] Update ex03.sh

---
 courses/bash/ex03/ex03.sh | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/courses/bash/ex03/ex03.sh b/courses/bash/ex03/ex03.sh
index 8d3ec4f0..34ea4a88 100644
--- a/courses/bash/ex03/ex03.sh
+++ b/courses/bash/ex03/ex03.sh
@@ -1,7 +1,7 @@
- #!/bin/bash
+#!/bin/bash
 
 if [ "$#" -ne 4 ]; then
-    echo "Usage: $0 filename keyword1 keyword2 keyword3" >&2
+    echo "Usage: $0 filename keyword1 keyword2 keyword3"
     exit 1
 fi
 
@@ -10,22 +10,21 @@ keyword1=$2
 keyword2=$3
 keyword3=$4
 
-if [ ! -r "$filename" ]; then
+if [ ! -f "$filename" ]; then
+    echo "File '$filename' not found!"
     exit 1
 fi
 
+
 search_keyword() {
     local keyword=$1
-    local matches
-    matches=$(grep -c "$keyword" "$filename")
     echo "Keyword: $keyword"
-    echo "Number of matches: $matches"
-    grep "$keyword" "$filename"
-    echo ""
+    count=$(grep -c "$keyword" "$filename")
+    echo "Number of matches: $count"
+    grep -n "$keyword" "$filename" || true
+    echo
 }
 
 search_keyword "$keyword1"
 search_keyword "$keyword2"
 search_keyword "$keyword3"
-
-exit 0

From e3d68cf7291650eeeba675a61132dba8423f204b Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Mon, 19 Aug 2024 01:06:27 +0300
Subject: [PATCH 28/31] Update ex04.sh

---
 courses/bash/ex04/ex04.sh | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/courses/bash/ex04/ex04.sh b/courses/bash/ex04/ex04.sh
index d8f3dc53..92b7c7f7 100644
--- a/courses/bash/ex04/ex04.sh
+++ b/courses/bash/ex04/ex04.sh
@@ -1,15 +1,15 @@
 #!/bin/bash
 
-if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 pattern" >&2
+echo "Searching for pattern: $1"
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 pattern"
     exit 1
 fi
 
-pattern=$1
+pattern="$1"
 
 find . -type f | while read -r file; do
-    
-    grep -Hn "$pattern" "$file"
+    echo "Checking file: $file"
+    grep -nH "$pattern" "$file" 2>/dev/null
 done
-
-exit 0

From 7cd6283ae6378febf3b53a2ef1d19de413bef131 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Mon, 19 Aug 2024 01:09:29 +0300
Subject: [PATCH 29/31] Update ex05.sh


From 04302097c37e76dc675e9861c20ceb5ea5c7a6da Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Mon, 19 Aug 2024 01:09:41 +0300
Subject: [PATCH 30/31] Update ex05.sh


From 385fbd8f4339439cb89abfb442e867ec501c8be0 Mon Sep 17 00:00:00 2001
From: kirill1261 <kirillvasiliev306@icloud.com>
Date: Mon, 19 Aug 2024 01:12:17 +0300
Subject: [PATCH 31/31] Update ex06.sh

---
 courses/bash/ex06/ex06.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/courses/bash/ex06/ex06.sh b/courses/bash/ex06/ex06.sh
index ede58089..d960cfed 100644
--- a/courses/bash/ex06/ex06.sh
+++ b/courses/bash/ex06/ex06.sh
@@ -6,7 +6,7 @@ map() {
         return 1
     fi
 
-    command=$1
+    local command=$1
     shift
 
     for arg in "$@"; do