Progress bar for c# console applications displayed at the bottom of the terminal.

ConsoleProgressBar.cs

using System;
using System.IO;
using System.Text;

/// <summary>
/// Console progressbar
/// </summary>
public class ConsoleProgressBar : IDisposable {

    public float CurrentProgress => writer.CurrentProgress;

    private TextWriter OriginalWriter;
    private ProgressWriter writer;

    public ConsoleProgressBar() {
        OriginalWriter = Console.Out;
        writer = new ProgressWriter(OriginalWriter);
        Console.SetOut(writer);
    }

    public void Dispose() {
        Console.SetOut(OriginalWriter);
        writer.ClearProgressBar();
    }

    public void SetProgress(float f) {
        writer.CurrentProgress = f;
        writer.RedrawProgress();
    }
    public void SetProgress(int i) {
        SetProgress((float)i);
    }

    public void Increment(float f) {
        writer.CurrentProgress += f;
        writer.RedrawProgress();
    }

    public void Increment(int i) {
        Increment((float)i);
    }

    private class ProgressWriter : TextWriter {

        public override Encoding Encoding => Encoding.UTF8;
        public float CurrentProgress {
            get { return _currentProgress; }
            set {
                _currentProgress = value;
                if(_currentProgress > 100) {
                    _currentProgress = 100;
                }else if(CurrentProgress < 0) {
                    _currentProgress = 0;
                }
            }
        }

        private float _currentProgress = 0;
        private TextWriter consoleOut;
        private const string ProgressTemplate = "[{0}] {1:n2}%";
        private const int AllocatedTemplateSpace = 11;
        private object SyncLock = new object();
        public ProgressWriter(TextWriter _consoleOut) {
            consoleOut = _consoleOut;
            RedrawProgress();
        }

        private void DrawProgressBar() {
            lock (SyncLock) {
                int avalibleSpace = Console.BufferWidth - AllocatedTemplateSpace;
                int percentAmmount = (int)((float)avalibleSpace * (CurrentProgress / 100));
                var col = Console.ForegroundColor;
                Console.ForegroundColor = ConsoleColor.DarkMagenta;
                string progressBar = string.Concat(new string('=', percentAmmount), new string(' ', avalibleSpace - percentAmmount));
                consoleOut.Write(string.Format(ProgressTemplate, progressBar, CurrentProgress));
                Console.ForegroundColor = col;
            }
        }

        public void RedrawProgress() {
            lock (SyncLock) {
                int LastLineWidth = Console.CursorLeft;
                var consoleH = Console.WindowTop + Console.WindowHeight - 1;
                Console.SetCursorPosition(0, consoleH);
                DrawProgressBar();
                Console.SetCursorPosition(LastLineWidth, consoleH - 1);
            }
        }

        private void ClearLineEnd() {
            lock (SyncLock) {
                int lineEndClear = Console.BufferWidth - Console.CursorLeft - 1;
                consoleOut.Write(new string(' ', lineEndClear));
            }
        }

        public void ClearProgressBar() {
            lock (SyncLock) {
                int LastLineWidth = Console.CursorLeft;
                var consoleH = Console.WindowTop + Console.WindowHeight - 1;
                Console.SetCursorPosition(0, consoleH);
                ClearLineEnd();
                Console.SetCursorPosition(LastLineWidth, consoleH - 1);
            }
        }

        public override void Write(char value) {
            lock (SyncLock) {
                consoleOut.Write(value);
            }
        }

        public override void Write(string value) {
            lock (SyncLock) {
                consoleOut.Write(value);
            }
        }

        public override void WriteLine(string value) {
            lock (SyncLock) {
                consoleOut.Write(value);
                consoleOut.Write(Environment.NewLine);
                ClearLineEnd();
                consoleOut.Write(Environment.NewLine);
                RedrawProgress();
            }
        }

        public override void WriteLine(string format, params object[] arg) {
            WriteLine(string.Format(format, arg));
        }

        public override void WriteLine(int i) {
            WriteLine(i.ToString());
        }

    }

}

UsageExample.cs

var sysFolder = new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.System));
FileInfo[] files = sysFolder.GetFiles("*.exe");

using (var progressBar = new ConsoleProgressBar()) {
  for(int i = 0; i < files.Length; i++) {
    Thread.Sleep(50);
    Console.WriteLine(files[i].Name);
    progressBar.SetProgress((i / (float)files.Length) * 100);
  }
}
Console.WriteLine("done.");