YJL

I used to have:

${execpi 3600 DJS=`date +%_d`; cal -m | sed '1d' | sed '/./!d' | sed 's/$/                     /' | fold -w 21 | sed -n '/^.\{21\}/p' | sed 's/^/${alignc} /' | sed /" $DJS "/s/" $DJS "/" "'${color FCAF3E}'"$DJS"'${color #e0e0e0}'" "/}

in my Conky. It shows as at the top of the following screenshot:

Recently, I decided to widen my Conky, so using cal -3s seems to be a better option. But as you can see the second one in above screenshot, its very hard to tell where today is in calendar. The Conky code:

${execi 3600 cal -3s}

I tried to use normal Un*x command-line tool (wasnt trying very hard), but I came out with a Python script (it only took me a few minutes):

#!/usr/bin/env python

import datetime
import re
import sys

day = datetime.date.today().day

RE = re.compile(r'\b%d\b' % day)

for line in sys.stdin.readlines():
  print line[:22] + RE.sub(r'${color red}%d$color' % day, line[22:42]) + line[42:],

Its not Pythonism nor genius script, but, anyway, it serves the purpose. The Conky code:

$color${execpi 3600 cal -3s | ~/.conky/calhltoday.py}