Minimal xinitrc for dwm

.xinitrc

#!/bin/sh

# Source global X session scripts.
if [ -d /etc/X11/xinit/xinitrc.d ]; then
  for f in /etc/X11/xinit/xinitrc.d/*; do
    [ -x "$f" ] && . "$f"
  done
  unset f
fi

xmodmap -e 'clear Lock' -e 'keycode 0x42 = Escape' -e 'keycode 0x86 = Multi_key'

redshift -PO 3000

feh --no-fehbg --bg-fill "$HOME/etc/.bg.png"

export GTK_IM_MODULE='fcitx'
export QT_IM_MODULE='fcitx'
export XMODIFIERS='@im=fcitx'

# Uncheck "Allow Overriding System XKB Settings" on Fcitx's XCB add-on settings
# to prevent it from undoing the `xmodmap` above.
fcitx5 &

battery() {
  battery='/sys/class/power_supply/BAT0'

  if [ -d "$battery" ]; then
    echo -n ' | '

    if grep -q 'Charging' "$battery/status"; then
      echo -n '+'
    fi

    tr -d '\n' <"$battery/capacity"

    echo '%'
  fi
}

while true; do
  xprop -root -set WM_NAME "$(date '+%A, %B %-d, %-I:%M %p')$(battery)"
  sleep 15
done &

st &

anki &

exec dwm

You might want to change the 1 in line 26 to 01, as date +%d outputs 01 on the first of every month (same for lines 27 and 28 as well)

@pranavgade20, you are absolutely right! This script was pretty bad. I'll leave an improved version close to the original here, because I am about to change it a bit.

#!/bin/sh

# Source global X session scripts.
if [ -d /etc/X11/xinit/xinitrc.d ]; then
  for f in /etc/X11/xinit/xinitrc.d/*; do
    [ -x "$f" ] && . "$f"
  done
  unset f
fi

feh --bg-fill "$HOME/pictures/wallpaper.png"

xmodmap -e 'clear Lock' -e 'keycode 0x42 = Escape'

redshift -PO 3000

day() {
  day="$(date '+%-d')"

  case "$day" in
    1|21|31) echo "${day}st";;
    2|22)    echo "${day}nd";;
    3|23)    echo "${day}rd";;
    *)       echo "${day}th";;
  esac
}

battery() {
  battery='/sys/class/power_supply/BAT0'

  if [ -d "$battery" ]; then
    echo ' | '

    if grep -q 'Charging' "$battery/status"; then
      echo '+'
    fi

    cat "$battery/capacity"

    echo '%'
  fi
}

while true; do
  xprop -root -set WM_NAME "$(date "+%A, %B $(day) %-H:%M")$(battery)"
  sleep 15
done &

st &

exec dwm