學習shell有一段時間了，一直沒有機會練手，看到同事發(fā)了一張照片，控制臺顯示了當月的日歷，是用Python實現(xiàn)的，感覺挺好玩，所以準備用shell來實現(xiàn)一個，搞了一下午，終于搞定。
打印本月的日期
#! /bin/bash
#設置字體顏色
tiffcolor="\033[0;35m"
menucolor="\033[0;33m"
todaycolor="\033[0;35;44m"
start="\033[0m"
#計算各個日期
month=`date +%m`
day=`date +%d`
year=`date +%Y`
weekday=`date -d "$year-$month-01" +%w`
nextmonth=`expr $month + 1`
today=`date +%d`
#計算本月有多少天
differ=$(( ($(date -d "$year-$nextmonth-01" +%s) - $(date +%s))/(24*60*60) ))
days=`expr $differ + $day`
#打印標題
echo -en "${menucolor}"
echo -en "\t $year $month\n"
echo "SUN MON TUE WEN THU FRI SAT"
echo -en "${start}"
#打印空格
if [ $weekday -ne 0 ];then
for((i=1;i=$weekday;i++))
do
echo -n " "
echo -n " "
done
fi
#打印日期
for((i=1;i=$days;i++))
do
printf "%s" " "
echo -en "${tiffcolor}"
#今天高亮顯示
if [ $today -eq $i ];then
echo -en "${todaycolor}"
fi
printf "%2d" $i
echo -en "${start}"
echo -en " "
if [ $((($weekday+$i)%7)) == 0 ];then
echo ""
fi
# printf "%3d " $i
done
echo ""
執(zhí)行結果：
擴展：給定任意日期，打印當月的日期
#! /bin/bash
#date=$1
tiffcolor="\033[0;35m"
menucolor="\033[0;33m"
todaycolor="\033[0;35;44m"
start="\033[0m"
if [ $# -ne 1 ];then
echo "plz input the date"
exit 1
fi
date=$1
count=`echo $date |grep -o '-'|wc -l`
if [ $count -ne 2 ];then
echo "plz input correct date"
exit 1
fi
year=`echo $date|cut -d "-" -f 1`
month=`echo $date|cut -d "-" -f 2`
day=`echo $date|cut -d "-" -f 3`
expr $year + $month + $day + 0 >/dev/null
if [ $? -ne 0 ];then
echo "plz input a correct date"
exit 1
elif [ $month -gt 12 -o $month -eq 0 ];then
echo "plz input the month between 1 and 12"
exit 1
elif [ $day -gt 31 -o $day -eq 0 ];then
echo "plz input the day between 1 and 31"
exit 1
fi
#nextmonth=$(( $month + 1))
#month=`date -d "$date" +%m`
#day=`date -d "$date" +%d`
#year=`date -d "$date" +%Y`
weekday=`date -d "$year-$month-01" +%w`
if [ $month -eq 12 ];then
newmonth=1
newyear=`expr $year + 1`
else
newyear=$year
#nextmonth= expr $month + 1
newmonth=`expr $month + 1`
fi
days=$(( ($(date -d "${newyear}-${newmonth}-01" +%s) - $(date -d "$year-$month-01" +%s))/(24*60*60) ))
#echo $days
echo -en "${menucolor}"
echo -en "\t $year $month\n"
echo "SUN MON TUE WEN THU FRI SAT"
echo -en "${start}"
if [ $weekday -ne 0 ];then
for((i=1;i=$weekday;i++))
do
echo -n " "
echo -n " "
done
fi
for((i=1;i=$days;i++))
do
printf "%s" " "
echo -en "${tiffcolor}"
if [ $day -eq $i ];then
echo -en "${todaycolor}"
fi
printf "%2d" $i
echo -en "${start}"
echo -en " "
if [ $((($weekday+$i)%7)) == 0 ];then
echo ""
fi
# printf "%3d " $i
done
echo ""
執(zhí)行結果：
以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。
