Сделай сам

#!/bin/bash

YEAR=$1
MONTH=0$2
MONTH=${MONTH:(-2)}

BGCOLOR=#F2F2F2
FONT="Cuprum"
DNSIZE=32
DWSIZE=16
WCOLOR=#445469
HCOLOR=#A00000

MONTH_NAME=$(date -d "${YEAR}-${MONTH}-01" "+%OB")

x=330
cc=${WCOLOR}
for d in $(seq $(date -d "$(date -d "${YEAR}-${MONTH}-01 next month" "+%Y-%m-%d") -1 day" "+%d"))
do
  dw=$(date -d "${YEAR}-${MONTH}-${d}" "+%u")
  dn=$(date -d "${YEAR}-${MONTH}-${d}" "+%d")
  dd=$(date -d "${YEAR}-${MONTH}-${d}" "+%a")
  if [[ ${dw} -eq 6 ]] || [[ ${dw} -eq 7 ]]; then c=${HCOLOR}; else c=${WCOLOR}; fi
  if [[ ${cc} != ${c} ]]; then s=$s" -fill $c"; cc=${c}; fi
  s=$s" -pointsize ${DNSIZE} -annotate +${x}+80 ${dn} -pointsize ${DWSIZE} -annotate +$((x))+45 ${dd}"
  x=$((x+50))
done

convert \( -size 1920x108 xc:${BGCOLOR} -font ${FONT} -pointsize ${DNSIZE} -fill ${WCOLOR} \
 -annotate +90+80 "${MONTH_NAME} ${YEAR}" ${s} \) \
 \( ${3} -strip -crop 1920x972+0+108 \) -append "${YEAR}-${MONTH} 1920x1080.jpg"