Terminal Escape Sequences

# Format: \e[<code>m  or  \033[<code>m
# Reset:  \e[0m

# Basic colors (30-37 foreground, 40-47 background)
echo -e "\e[31mRed text\e[0m"
echo -e "\e[32mGreen text\e[0m"
echo -e "\e[33mYellow text\e[0m"
echo -e "\e[34mBlue text\e[0m"
echo -e "\e[41mRed background\e[0m"

# Bright colors (90-97 foreground, 100-107 background)
echo -e "\e[91mBright red\e[0m"

# 256-color mode
echo -e "\e[38;5;208mOrange (color 208)\e[0m"    # foreground
echo -e "\e[48;5;57mPurple bg (color 57)\e[0m"   # background

# True color (24-bit RGB)
echo -e "\e[38;2;137;180;250mCatppuccin blue\e[0m"  # rgb(137,180,250)
echo -e "\e[48;2;30;30;46mCatppuccin base bg\e[0m"  # rgb(30,30,46)

echo -e "\e[1mBold\e[0m"
echo -e "\e[2mDim\e[0m"
echo -e "\e[3mItalic\e[0m"
echo -e "\e[4mUnderline\e[0m"
echo -e "\e[5mBlink\e[0m"
echo -e "\e[7mReverse (invert)\e[0m"
echo -e "\e[8mHidden\e[0m"
echo -e "\e[9mStrikethrough\e[0m"

# Combine attributes
echo -e "\e[1;3;31mBold italic red\e[0m"

# Move cursor
echo -e "\e[10A"         # up 10 lines
echo -e "\e[5B"          # down 5 lines
echo -e "\e[20C"         # right 20 columns
echo -e "\e[3D"          # left 3 columns
echo -e "\e[2;10H"       # move to row 2, column 10
echo -e "\e[H"           # move to home (1,1)

# Save and restore position
echo -e "\e[s"           # save cursor position
echo -e "\e[u"           # restore cursor position
echo -e "\e7"            # save (DEC private)
echo -e "\e8"            # restore (DEC private)

# Clear
echo -e "\e[2J"          # clear entire screen
echo -e "\e[0J"          # clear from cursor to end
echo -e "\e[1J"          # clear from cursor to beginning
echo -e "\e[2K"          # clear entire line
echo -e "\e[0K"          # clear from cursor to end of line

# Scroll
echo -e "\e[3S"          # scroll up 3 lines
echo -e "\e[3T"          # scroll down 3 lines

# Alternative screen buffer (used by vim, less, htop)
echo -e "\e[?1049h"      # switch to alt buffer
echo -e "\e[?1049l"      # switch back to main buffer

# Set window title
echo -e "\e]0;My Terminal Title\a"

# Set clipboard (OSC 52) -- works over SSH
printf "\e]52;c;%s\a" "$(echo -n 'text to copy' | base64)"

# Hyperlinks (OSC 8)
echo -e "\e]8;;https://docs.domusdigitalis.dev\aClick here\e]8;;\a"

# Desktop notification (OSC 9 / OSC 777)
echo -e "\e]777;notify;Title;Body text\a"

progress_bar() {
  local percent=$1
  local width=40
  local filled=$((percent * width / 100))
  local empty=$((width - filled))

  printf "\r\e[32m["
  printf "%${filled}s" | tr ' ' '#'
  printf "%${empty}s" | tr ' ' '-'
  printf "] %3d%%\e[0m" "$percent"
}

for i in $(seq 0 5 100); do
  progress_bar "$i"
  sleep 0.1
done
echo

# 256-color test
for i in $(seq 0 255); do
  printf "\e[48;5;%dm %3d \e[0m" "$i" "$i"
  [ $(( (i + 1) % 16 )) -eq 0 ] && echo
done

# True color test
awk 'BEGIN{
  for(r=0;r<256;r+=4){
    printf "\033[48;2;%d;0;0m \033[0m",r
  }
  print ""
}'