Complete Bash scripts for automation tasks

scripts/backup.sh

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+#!/bin/bash
+set -euo pipefail
+
+# -------------------------
+# Variables
+# -------------------------
+BACKUP_DIR="backups"
+LOG_FILE="backup.log"
+TIMESTAMP=$(date +%F_%H-%M-%S)
+
+# -------------------------
+# Check input
+# -------------------------
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 <directory>"
+    exit 1
+fi
+
+SOURCE_DIR="$1"
+
+# -------------------------
+# Validate directory
+# -------------------------
+if [ ! -d "$SOURCE_DIR" ]; then
+    echo "Error: Directory does not exist!"
+    exit 1
+fi
+
+# -------------------------
+# Create backup directory
+# -------------------------
+mkdir -p "$BACKUP_DIR"
+
+# -------------------------
+# Create backup
+# -------------------------
+BACKUP_FILE="$BACKUP_DIR/backup_$TIMESTAMP.tar.gz"
+
+tar -czf "$BACKUP_FILE" "$SOURCE_DIR"
+
+echo "$(date) - Backup created: $BACKUP_FILE" >> "$LOG_FILE"
+
+# -------------------------
+# Keep only last 5 backups
+# -------------------------
+cd "$BACKUP_DIR"
+
+ls -t backup_*.tar.gz 2>/dev/null | tail -n +6 | while read -r old_backup; do
+    rm -f "$old_backup"
+    echo "$(date) - Deleted old backup: $old_backup" >> "../$LOG_FILE"
+done
+
+cd - >/dev/null
+
+echo "Backup completed successfully!"

scripts/file_manager.sh

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+#!/bin/bash
+
+LOG_FILE="logs/file_manager.log"
+
+# Ensure logs directory exists
+mkdir -p logs
+
+# Function to log actions
+log_action() {
+    local message="$1"
+    echo "$(date) - $message" >> "$LOG_FILE"
+}
+
+# Check for at least 2 arguments
+if [ $# -lt 2 ]; then
+    echo "Usage: $0 {create|delete|list|rename} <filename> [newname]"
+    exit 1
+fi
+
+COMMAND=$1
+FILE=$2
+
+case $COMMAND in
+    create)
+        # Auto-rename if file exists
+        base="$FILE"
+        ext=""
+        if [[ "$FILE" == *.* ]]; then
+            base="${FILE%.*}"
+            ext=".${FILE##*.}"
+        fi
+
+        counter=1
+        newfile="$FILE"
+        while [ -e "$newfile" ]; do
+            newfile="${base}_$counter$ext"
+            ((counter++))
+        done
+
+        touch "$newfile"
+        echo "File created: $newfile"
+        log_action "CREATE: $newfile"
+        ;;
+
+    delete)
+        if [ ! -e "$FILE" ]; then
+            echo "Error: $FILE does not exist."
+            log_action "DELETE FAILED: $FILE does not exist"
+        else
+            rm -i "$FILE"
+            echo "File deleted: $FILE"
+            log_action "DELETE: $FILE"
+        fi
+        ;;
+
+    list)
+        echo "Files in current directory:"
+        ls -lah
+        log_action "LIST directory"
+        ;;
+
+    rename)
+        NEW_NAME=$3
+        if [ -z "$NEW_NAME" ]; then
+            echo "Error: You must provide a new name for the file."
+            exit 1
+        fi
+        if [ ! -e "$FILE" ]; then
+            echo "Error: $FILE does not exist."
+            log_action "RENAME FAILED: $FILE does not exist"
+        elif [ -e "$NEW_NAME" ]; then
+            echo "Error: $NEW_NAME already exists. Aborting."
+            log_action "RENAME FAILED: $NEW_NAME already exists"
+        else
+            mv "$FILE" "$NEW_NAME"
+            echo "File renamed from $FILE to $NEW_NAME"
+            log_action "RENAME: $FILE -> $NEW_NAME"
+        fi
+        ;;
+
+    *)
+        echo "Unknown command: $COMMAND"
+        echo "Usage: $0 {create|delete|list|rename} <filename> [newname]"
+        exit 1
+        ;;
+esac

scripts/fille_manager.sh

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+#!/bin/bash
+
+echo "Before creating folder_1 and file_1"
+ls
+
+# to create a directory and file
+mkdir folder_1
+touch file_1
+
+echo "After creating folder_1 and file_1"
+ls
+
+# to rename directory and  file
+mv folder_1 tsfolder
+mv file_1 tsfile
+
+echo "After renaming folder_1 and file_1"
+ls
+
+
+#deleting dir and file
+rm -rf tsfolder
+rm -f tsfile
+echo "After removing tsfolder and tsfile"
+ls

scripts/logs/app.log

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+2026-04-03 18:39:03 - Running all scripts...
+2026-04-03 18:39:03 - Running system check...
+2026-04-03 18:39:03 - process_monitor.sh not found or not executable
+2026-04-03 18:39:03 - Running backup...
+2026-04-03 18:39:14 - backup.sh not found or not executable
+2026-04-03 18:39:14 - All tasks completed
+2026-04-03 18:39:18 - Running system check...
+2026-04-03 18:39:18 - process_monitor.sh not found or not executable
+2026-04-03 18:39:32 - Running backup...
+2026-04-03 18:39:39 - backup.sh not found or not executable
+2026-04-03 18:39:44 - Exiting application

scripts/logs/file_manager.log

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+Mon Mar 30 21:58:24 WAT 2026 - CREATE: file_1.txt
+Mon Mar 30 21:59:26 WAT 2026 - RENAME: file.txt -> filenew.txt
+Mon Mar 30 22:00:08 WAT 2026 - DELETE FAILED: file.txt does not exist
+Mon Mar 30 22:00:47 WAT 2026 - CREATE: file1.txt
+Fri Apr  3 15:57:21 WAT 2026 - CREATE: file.txt
+Fri Apr  3 15:58:37 WAT 2026 - RENAME: file.txt -> fille.txt
+Fri Apr  3 16:32:20 WAT 2026 - CREATE: file_2.txt
+Fri Apr  3 16:32:51 WAT 2026 - DELETE: file_2.txt

scripts/logs/system_report_2026-03-30_22-26-54.log

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+Filesystem      Size  Used Avail Use% Mounted on
+none            1.9G     0  1.9G   0% /usr/lib/modules/6.6.87.2-microsoft-standard-WSL2
+none            1.9G  4.0K  1.9G   1% /mnt/wsl
+drivers         476G  113G  364G  24% /usr/lib/wsl/drivers
+/dev/sdd       1007G  1.4G  955G   1% /
+none            1.9G  308K  1.9G   1% /mnt/wslg
+none            1.9G     0  1.9G   0% /usr/lib/wsl/lib
+rootfs          1.9G  2.7M  1.9G   1% /init
+none            1.9G  516K  1.9G   1% /run
+none            1.9G     0  1.9G   0% /run/lock
+none            1.9G     0  1.9G   0% /run/shm
+none            1.9G   76K  1.9G   1% /mnt/wslg/versions.txt
+none            1.9G   76K  1.9G   1% /mnt/wslg/doc
+C:\             476G  113G  364G  24% /mnt/c
+tmpfs           378M   20K  378M   1% /run/user/1000
+
+               total        used        free      shared  buff/cache   available
+Mem:            3771         413        3166           3         268        3357
+Swap:           1024           0        1024
+
+ 22:26:54 up  5:38,  1 user,  load average: 0.00, 0.00, 0.00
+
+=== Disk Usage Warnings ===
+

scripts/logs/system_report_2026-03-30_22-32-31.log

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+=== System Check Report ===
+Date: Mon Mar 30 22:32:31 CEST 2026
+
+=== Disk Usage ===
+Filesystem      Size  Used Avail Use% Mounted on
+none            1.9G     0  1.9G   0% /usr/lib/modules/6.6.87.2-microsoft-standard-WSL2
+none            1.9G  4.0K  1.9G   1% /mnt/wsl
+drivers         476G  113G  363G  24% /usr/lib/wsl/drivers
+/dev/sdd       1007G  1.4G  955G   1% /
+none            1.9G  308K  1.9G   1% /mnt/wslg
+none            1.9G     0  1.9G   0% /usr/lib/wsl/lib
+rootfs          1.9G  2.7M  1.9G   1% /init
+none            1.9G  520K  1.9G   1% /run
+none            1.9G     0  1.9G   0% /run/lock
+none            1.9G     0  1.9G   0% /run/shm
+none            1.9G   76K  1.9G   1% /mnt/wslg/versions.txt
+none            1.9G   76K  1.9G   1% /mnt/wslg/doc
+C:\             476G  113G  363G  24% /mnt/c
+tmpfs           378M   20K  378M   1% /run/user/1000
+
+=== Disk Usage Warnings (>80%) ===
+
+=== Memory Usage (MB) ===
+               total        used        free      shared  buff/cache   available
+Mem:            3771         416        3162           3         269        3354
+Swap:           1024           0        1024
+
+=== CPU Load ===
+ 22:32:31 up  5:44,  1 user,  load average: 0.00, 0.00, 0.00
+
+=== Total Running Processes ===
+Total processes: 33
+
+=== Top 5 Memory-Consuming Processes ===
+    PID    PPID CMD                         %MEM %CPU
+    206       1 /usr/bin/python3 /usr/share  0.5  0.0
+     42       1 /usr/lib/systemd/systemd-jo  0.3  0.0
+   2281       1 /usr/libexec/wsl-pro-servic  0.3  0.1
+      1       0 /sbin/init                   0.3  0.0
+    104       1 /usr/lib/systemd/systemd-re  0.3  0.0
+

scripts/logs/system_report_2026-04-03_15-40-51.log

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+=== System Check Report ===
+Date: Fri Apr  3 15:40:51 WAT 2026
+
+=== Disk Usage ===
+Filesystem      Size  Used Avail Use% Mounted on
+none            1.9G     0  1.9G   0% /usr/lib/modules/6.6.87.2-microsoft-standard-WSL2
+none            1.9G  4.0K  1.9G   1% /mnt/wsl
+drivers         476G  114G  363G  24% /usr/lib/wsl/drivers
+/dev/sdd       1007G  1.4G  955G   1% /
+none            1.9G  372K  1.9G   1% /mnt/wslg
+none            1.9G     0  1.9G   0% /usr/lib/wsl/lib
+rootfs          1.9G  2.7M  1.9G   1% /init
+none            1.9G  520K  1.9G   1% /run
+none            1.9G     0  1.9G   0% /run/lock
+none            1.9G     0  1.9G   0% /run/shm
+none            1.9G   76K  1.9G   1% /mnt/wslg/versions.txt
+none            1.9G   76K  1.9G   1% /mnt/wslg/doc
+C:\             476G  114G  363G  24% /mnt/c
+tmpfs           378M   20K  378M   1% /run/user/1000
+
+=== Disk Usage Warnings (>80%) ===
+
+=== Memory Usage (MB) ===
+               total        used        free      shared  buff/cache   available
+Mem:            3771         415        3233           3         199        3355
+Swap:           1024           0        1024
+
+=== CPU Load ===
+ 15:40:51 up  7:30,  1 user,  load average: 0.00, 0.00, 0.00
+
+=== Total Running Processes ===
+Total processes: 35
+
+=== Top 5 Memory-Consuming Processes ===
+    PID    PPID CMD                         %MEM %CPU
+    206       1 /usr/bin/python3 /usr/share  0.5  0.0
+     42       1 /usr/lib/systemd/systemd-jo  0.3  0.0
+      1       0 /sbin/init                   0.3  0.0
+    104       1 /usr/lib/systemd/systemd-re  0.3  0.0
+    345       1 /usr/lib/systemd/systemd --  0.2  0.0
+

scripts/logs/user_info.log

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+Mon Mar 30 20:49:55 WAT 2026 - Name: Daniel | Age: 45 | Country: Nigeria | Category: Adult
+Fri Apr  3 15:23:12 WAT 2026 - Name: Daniel | Age: 3 | Country: Nigeria | Category: Minor
+Fri Apr  3 15:24:46 WAT 2026 - Name: Aji | Age: 45 | Country: South Africa | Category: Adult
+Fri Apr  3 15:27:05 WAT 2026 - Name: Aji | Age: 46 | Country: South Korea | Category: Adult
+Fri Apr  3 15:31:09 WAT 2026 - Name: Aji | Age: 47 | Country: America | Category: Adult

scripts/logs/user_info.sh

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+#!/bin/bash
+
+LOG_FILE="logs/user_info.log"
+
+# Ensure logs directory exists
+mkdir -p logs
+
+echo "=== User Information Script ==="
+
+# Prompt user for input
+read -p "Enter your name: " name
+read -p "Enter your age: " age
+read -p "Enter your country: " country
+
+# Validate inputs
+if [[ -z "$name" || -z "$age" || -z "$country" ]]; then
+    echo "Error: All fields are required."
+    echo "$(date) - ERROR: Missing input" >> "$LOG_FILE"
+    exit 1
+fi
+
+# Check if age is numeric
+if ! [[ "$age" =~ ^[0-9]+$ ]]; then
+    echo "Error: Age must be a number."
+    echo "$(date) - ERROR: Invalid age input ($age)" >> "$LOG_FILE"
+    exit 1
+fi
+
+# Determine age category
+if (( age < 18 )); then
+    category="Minor"
+elif (( age <= 65 )); then
+    category="Adult"
+else
+    category="Senior"
+fi
+
+# Output message
+message="Hello $name from $country! You are an $category."
+
+echo "$message"
+
+# Save to log file
+echo "$(date) - Name: $name | Age: $age | Country: $country | Category: $category" >> "$LOG_FILE"