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How to use gdb in Ubuntu Terminal

Here's a practical, minimal guide for using GDB in Ubuntu terminal — from launching to setting breakpoints and navigating your code. 🧰 Step 1: Compile with Debug Symbols Use -g and disable optimizations ( -O0 preferred for debugging): bash Copy Edit g++ -g -O0 -o myprog myprog.cpp 🚀 Step 2: Launch GDB bash Copy Edit gdb ./myprog You'll see a (gdb) prompt. 🎯 Step 3: Set Breakpoints You can set breakpoints in three main ways : ✅ a. At a function gdb Copy Edit (gdb) break main ✅ b. At a specific file and line gdb Copy Edit (gdb) break myprog.cpp:42 ✅ c. At a method in a class gdb Copy Edit (gdb) break MyClass::doSomething If the symbol is mangled (C++), GDB usually demangles automatically, especially if compiled with -g . ▶️ Step 4: Run the Program gdb Copy Edit (gdb) run 🧭 Step 5: Navigate Command Meaning next or n Step over current line step or s Step into function call finish Run until current function returns continue or c Continue until...
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Sqlite database explorer : chatGpt ans

For viewing and managing SQLite databases, there are several GUI tools similar to pgAdmin, MySQL Workbench, or phpMyAdmin. Here are some popular ones:

1. DB Browser for SQLite

  • Description: DB Browser for SQLite is a high-quality, open-source tool designed to create, design, and edit SQLite database files.
  • Features:
    • Visual database file creation, modification, and query execution.
    • Import and export databases to and from SQL or CSV files.
    • Simple and intuitive user interface.
  • Installation on Ubuntu:
    sh
    sudo apt update
sudo apt install sqlitebrowser
  • Usage: After installation, you can launch it from the application menu or by typing sqlitebrowser in the terminal.

2. DBeaver

  • Description: DBeaver is a free, open-source database management tool that supports a wide range of databases, including SQLite.
  • Features:
    • Supports many types of databases (SQLite, PostgreSQL, MySQL, etc.).
    • Visual query builder, data editor, and SQL execution.
    • ER diagrams and data visualization tools.
  • Installation on Ubuntu:
    sh
    sudo apt update
sudo apt install dbeaver
  • Usage: Launch DBeaver from the application menu or by typing dbeaver in the terminal.

3. SQLiteStudio

  • Description: SQLiteStudio is another open-source, user-friendly tool for SQLite databases.
  • Features:
    • Cross-platform with a focus on ease of use.
    • No installation required, just download and run.
    • Supports SQL editing, import/export, and visual table design.
  • Installation:
    • Download the latest version from the SQLiteStudio website and extract the files.
    • Run the executable directly from the extracted folder.

4. TablePlus

  • Description: TablePlus is a modern, native tool with a clean interface for managing multiple databases, including SQLite.
  • Features:
    • Supports multiple databases (SQLite, MySQL, PostgreSQL, etc.).
    • Modern interface with code highlighting and data viewing.
    • Quick access to query results and database structure.
  • Installation: TablePlus offers a Linux version that you can download from their official website, though it might require a subscription for advanced features.

Summary

  • DB Browser for SQLite and SQLiteStudio are specifically tailored for SQLite and provide a lightweight, focused experience.
  • DBeaver and TablePlus are more general-purpose tools that support multiple database systems, making them ideal if you work with different databases.

These tools provide a user-friendly interface for managing SQLite databases, similar to pgAdmin for PostgreSQL or MySQL Workbench for MySQL.

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