File: year.sh
   1 #!/bin/sh
   2 
   3 # The MIT License (MIT)
   4 #
   5 # Copyright © 2020-2025 pacman64
   6 #
   7 # Permission is hereby granted, free of charge, to any person obtaining a copy
   8 # of this software and associated documentation files (the “Software”), to deal
   9 # in the Software without restriction, including without limitation the rights
  10 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 # copies of the Software, and to permit persons to whom the Software is
  12 # furnished to do so, subject to the following conditions:
  13 #
  14 # The above copyright notice and this permission notice shall be included in
  15 # all copies or substantial portions of the Software.
  16 #
  17 # THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23 # SOFTWARE.
  24 
  25 
  26 # year [options...] [year...]
  27 #
  28 #
  29 # Show a calendar for the current year, or for the year given, along with the
  30 # current time and date.
  31 #
  32 # The only options show this help message, via any of `-h`, `--h`, `-help`,
  33 # or `--help`.
  34 
  35 
  36 # handle help option(s)
  37 case "$1" in
  38     -h|--h|-help|--help)
  39         awk '/^# +year /, /^$/ { gsub(/^# ?/, ""); print }' "$0"
  40         exit 0
  41     ;;
  42 esac
  43 
  44 {
  45     # show the current date/time center-aligned
  46     printf "%20s\e[32m%s\e[0m  \e[34m%s\e[0m\n\n" \
  47         "" "$(date +'%a %b %d %Y')" "$(date +%T)"
  48 
  49     # debian linux has a different `cal` app which highlights the day
  50     if [ -e "/usr/bin/ncal" ]; then
  51         # fix debian/ncal's weird way to highlight the current day
  52         ncal -C -y "$@" | sed -E 's/_\x08(.)/\x1b[7m\1\x1b[0m/g'
  53     else
  54         cal -y "$@"
  55     fi
  56 } | less -JMKiCRS