#1 2025-08-04 22:18:32

close2zero

Member

From: Norway

Registered: 2025-07-14

Posts: 34

The pointless script thread

This thread is for sharing pointless scrips that has no useful value at all, except for the fun or humor in it.

Here is my first contribution - The old and famous "Windows  BLUE SCREEN OF DEATH"

bluescreen.sh

#!/bin/bash

# === BLUE SCREEN OF (NOT) DEATH ===
# Simulated BSOD for Linux nerds with humor ;)
# To quit just press Ctrl+C

# Hide cursor
tput civis

# Set terminal to blue background and white text
setterm -background blue -foreground white -clear

# Write "BSOD"-like text
echo -e "\n\n\n"
echo "A problem has been detected and your system has been shut down to prevent damage."
echo
echo "The problem seems to be caused by the following file: ext4.exe"
echo
echo "*** STOP: 0x00000F00 (0x00000000, 0x00000000, 0x00000000)"
echo "***    ext4.exe - KERNEL_SELF_REFERENCE_FAILURE"
echo
echo "Beginning dump of physical memory..."

# Simulated dump
for i in {1..100}; do
    echo -ne "Dumping: $i%...\r"
    sleep 0.05
done

echo -e "\n\nPhysical memory dump complete."
echo "Contact your system administrator or technical support group."

# Infinite loop – has to be stopped manually
while true; do
    sleep 1
done

And for the Administrators: If this thread is more suitable in the Off Topic section, just move it there

[Edit: Just to make the Subject more clear and giving an introduction to what to post in this thread]

Last edited by close2zero (2025-08-04 23:05:55)

---

while true; do mount /dev/close2zero /mnt/clarity; done

johnraff

nullglob

From: Nagoya, Japan

Registered: 2015-09-09

Posts: 12,652

Website

Re: The pointless script thread

...for the Administrators: If this thread is more suitable in the Off Topic section, just move it there

It's fine here IMO.
Pointless or not, it's still about scripting.

---

...elevator in the Brain Hotel, broken down but just as well...
( a boring Japan blog (currently paused), now on Bluesky, there's also some GitStuff )

Introduction to the Bunsenlabs Boron Desktop

close2zero

Member

From: Norway

Registered: 2025-07-14

Posts: 34

Re: The pointless script thread

I have one more now, but it's still work in progress. I want to add more features because now it is only up and running. Here is a taste for those who are interested:

pong-pon.sh (the terminal emulator edition)

#!/bin/bash

###################################
#                                 #
# Pong Pon for terminal emulators #
#                                 #
###################################

clear
cat << "EOF"

██████╗  ██████╗ ███╗   ██╗ ██████╗ 
██╔══██╗██╔═══██╗████╗  ██║██╔════╝ 
██████╔╝██║   ██║██╔██╗ ██║██║  ███╗
██╔═══╝ ██║   ██║██║╚██╗██║██║   ██║
██║     ╚██████╔╝██║ ╚████║╚██████╔╝
╚═╝      ╚═════╝ ╚═╝  ╚═══╝ ╚═════╝ 
        ██████╗  ██████╗  ███╗   ██╗
        ██╔══██╗██╔═══██╗ ████╗  ██║
        ██████╔╝██║   ██║ ██╔██╗ ██║
        ██╔═══╝ ██║   ██║ ██║╚██╗██║
        ██║     ╚██████╔╝ ██║ ╚████║
        ╚═╝      ╚═════╝  ╚═╝  ╚═══╝

          ┌──────────────────────────────────────────────┐
          │                Choose Game Mode              │
          ├──────────────────────────────────────────────┤
          │  1. Two Player   (Left: w/s   Right: o/l)    │
          │  2. One Player   (You: w/s    Opponent: AI)  │
          └──────────────────────────────────────────────┘

EOF

read -rp $'Choose Game Mode (1 or 2): ' choice

case "$choice" in
  1) msg="Starting Pong – Two Player Mode..." ; mode="pong-two-player.sh" ;;
  2) msg="Starting Pong – One Player Mode..." ; mode="pong-ai.sh" ;;
  *) echo "Invalid choice."; exit 1 ;;
esac

echo -e "$msg"
echo -n "Loading game "

# Classic spinner animation
spinner="/-\\|"
for i in {1..12}; do
    i=$((i % 4))
    printf "\b${spinner:$i:1}"
    sleep 0.2
done

BIN="$HOME/bin/$mode"
mkdir -p "$HOME/bin"

if [[ "$mode" == "pong-two-player.sh" ]]; then
  cat > "$BIN" << 'EOF'
#!/bin/bash

# === CONFIGURATION ===
HEIGHT=24
WIDTH=80
PADDLE_HEIGHT=4
BALL_CHAR="o"
PADDLE_CHAR="|"
DELAY=0.02

# === INITIAL POSITIONS ===
paddle1_y=10
paddle2_y=10
ball_x=$((WIDTH / 2))
ball_y=$((HEIGHT / 2))
ball_dx=-1  # Always start toward player 1
ball_dy=1

# === TERMINAL SETUP ===
stty -echo -icanon time 0 min 0
tput civis
clear

# === CLEANUP ON EXIT ===
cleanup() {
    tput cnorm
    stty sane
    clear
    exit
}
trap cleanup INT TERM

# === DRAW FUNCTION (BUFFERED) ===
draw() {
    screen_buffer=""
    for ((y=0; y<HEIGHT; y++)); do
        line=""
        for ((x=0; x<WIDTH; x++)); do
            if ((x == 1 && y >= paddle1_y && y < paddle1_y + PADDLE_HEIGHT)); then
                line+="$PADDLE_CHAR"
            elif ((x == WIDTH - 2 && y >= paddle2_y && y < paddle2_y + PADDLE_HEIGHT)); then
                line+="$PADDLE_CHAR"
            elif ((x == ball_x && y == ball_y)); then
                line+="$BALL_CHAR"
            else
                line+=" "
            fi
        done
        screen_buffer+="$line\n"
    done
    echo -en "$screen_buffer"
}

# === MAIN GAME LOOP ===
while true; do
    # PLAYER INPUT
    if read -rsn1 -t "$DELAY" key; then
        case "$key" in
            w|W) ((paddle1_y > 1)) && ((paddle1_y--)) ;;
            s|S) ((paddle1_y + PADDLE_HEIGHT < HEIGHT - 1)) && ((paddle1_y++)) ;;
            o|O) ((paddle2_y > 1)) && ((paddle2_y--)) ;;
            l|L) ((paddle2_y + PADDLE_HEIGHT < HEIGHT - 1)) && ((paddle2_y++)) ;;
            q|Q) cleanup ;;
        esac
    fi

    # BALL MOVEMENT
    ((ball_x += ball_dx))
    ((ball_y += ball_dy))

    if ((ball_y <= 0 || ball_y >= HEIGHT - 1)); then
        ((ball_dy *= -1))
    fi

    # COLLISION WITH LEFT PADDLE
    if ((ball_x == 2)); then
        if ((ball_y >= paddle1_y && ball_y < paddle1_y + PADDLE_HEIGHT)); then
            ((ball_dx *= -1))
        fi
    fi

    # COLLISION WITH RIGHT PADDLE
    if ((ball_x == WIDTH - 3)); then
        if ((ball_y >= paddle2_y && ball_y < paddle2_y + PADDLE_HEIGHT)); then
            ((ball_dx *= -1))
        fi
    fi

    # OUT OF BOUNDS – RESET BALL
    if ((ball_x <= 0 || ball_x >= WIDTH - 1)); then
        ball_x=$((WIDTH / 2))
        ball_y=$((HEIGHT / 2))
        ball_dx=-1
        ball_dy=$((RANDOM % 2 == 0 ? 1 : -1))
    fi

    # RENDER FRAME
    draw
done
EOF
else
  cat > "$BIN" << 'EOF'
#!/bin/bash

# === CONFIGURATION ===
HEIGHT=24
WIDTH=80
PADDLE_HEIGHT=4
BALL_CHAR="o"
PADDLE_CHAR="|"
DELAY=0.02

# === INITIAL POSITIONS ===
paddle1_y=10
paddle2_y=10
ball_x=$((WIDTH / 2))
ball_y=$((HEIGHT / 2))
ball_dx=-1  # Always start toward the player at game start
ball_dy=1
ai_target_y=10
prev_ball_dx=$ball_dx
ai_reaction_delay=5
ai_reaction_counter=0

# === TERMINAL SETUP ===
stty -echo -icanon time 0 min 0
tput civis
clear

# === CLEANUP ON EXIT ===
cleanup() {
    tput cnorm
    stty sane
    clear
    exit
}
trap cleanup INT TERM

# === AI PREDICTION FUNCTION ===
predict_ball_target_y() {
    local sim_x=$ball_x
    local sim_y=$ball_y
    local dx=$ball_dx
    local dy=$ball_dy

    while ((sim_x < WIDTH - 3)); do
        ((sim_x += dx))
        ((sim_y += dy))
        if ((sim_y <= 0 || sim_y >= HEIGHT - 1)); then
            ((dy *= -1))
        fi
    done

    local offset=$(( (RANDOM % 3) - 1 ))
    sim_y=$((sim_y + offset))

    if ((sim_y < 1)); then sim_y=1; fi
    if ((sim_y > HEIGHT - PADDLE_HEIGHT)); then
        sim_y=$((HEIGHT - PADDLE_HEIGHT))
    fi

    echo "$sim_y"
}

# === DRAW FUNCTION (BUFFERED) ===
draw() {
    screen_buffer=""
    for ((y=0; y<HEIGHT; y++)); do
        line=""
        for ((x=0; x<WIDTH; x++)); do
            if ((x == 1 && y >= paddle1_y && y < paddle1_y + PADDLE_HEIGHT)); then
                line+="$PADDLE_CHAR"
            elif ((x == WIDTH - 2 && y >= paddle2_y && y < paddle2_y + PADDLE_HEIGHT)); then
                line+="$PADDLE_CHAR"
            elif ((x == ball_x && y == ball_y)); then
                line+="$BALL_CHAR"
            else
                line+=" "
            fi
        done
        screen_buffer+="$line\n"
    done
    echo -en "$screen_buffer"
}

# === MAIN GAME LOOP ===
while true; do
    if read -rsn1 -t "$DELAY" key; then
        case "$key" in
            w|W) ((paddle1_y > 1)) && ((paddle1_y--)) ;;
            s|S) ((paddle1_y + PADDLE_HEIGHT < HEIGHT - 1)) && ((paddle1_y++)) ;;
            q|Q) cleanup ;;
        esac
    fi

    if ((ball_dx == 1 && prev_ball_dx != 1)); then
        ai_reaction_counter=$ai_reaction_delay
    fi
    prev_ball_dx=$ball_dx

    if ((ai_reaction_counter > 0)); then
        ((ai_reaction_counter--))
        if ((ai_reaction_counter == 0)); then
            ai_target_y=$(predict_ball_target_y)
        fi
    fi

    if ((ball_dx == 1 && ball_x < WIDTH * 3 / 4)); then
        if ((RANDOM % 4 == 0)); then
            if ((RANDOM % 2 == 0 && paddle2_y > 1)); then
                ((paddle2_y--))
            elif ((paddle2_y + PADDLE_HEIGHT < HEIGHT - 1)); then
                ((paddle2_y++))
            fi
        fi
    elif ((ai_reaction_counter == 0)); then
        ai_center=$((paddle2_y + PADDLE_HEIGHT / 2))
        if ((ai_center < ai_target_y)); then
            ((paddle2_y++))
        elif ((ai_center > ai_target_y)); then
            ((paddle2_y--))
        fi
    fi

    if ((paddle2_y < 1)); then paddle2_y=1; fi
    if ((paddle2_y + PADDLE_HEIGHT > HEIGHT - 1)); then
        paddle2_y=$((HEIGHT - 1 - PADDLE_HEIGHT))
    fi

    ((ball_x += ball_dx))
    ((ball_y += ball_dy))

    if ((ball_y <= 0 || ball_y >= HEIGHT - 1)); then
        ((ball_dy *= -1))
    fi

    if ((ball_x == 2)); then
        if ((ball_y >= paddle1_y && ball_y < paddle1_y + PADDLE_HEIGHT)); then
            ((ball_dx *= -1))
        fi
    fi

    if ((ball_x == WIDTH - 3)); then
        if ((ball_y >= paddle2_y && ball_y < paddle2_y + PADDLE_HEIGHT)); then
            ((ball_dx *= -1))
        fi
    fi

    if ((ball_x <= 0 || ball_x >= WIDTH - 1)); then
        ball_x=$((WIDTH / 2))
        ball_y=$((HEIGHT / 2))
        ball_dx=-1
        ball_dy=$((RANDOM % 2 == 0 ? 1 : -1))
        ai_target_y=$paddle2_y
        ai_reaction_counter=0
        prev_ball_dx=$ball_dx
    fi

    draw
done
EOF
fi

chmod +x "$BIN"
"$BIN"
rm -f "$BIN"
exit 0

Enjoy..

[Edit:]
Just misplaced the end of code and had to move it to the right place

Last edited by close2zero (2025-08-05 12:57:48)

---

while true; do mount /dev/close2zero /mnt/clarity; done