使用AWK在shell中生成日历小程序_linux shell_

 # 在shell中生成日历 # 使用方式 # awk -f thisFile +2017 # awk -f thisFile +2017.10 # awk -f thisFile +2017.10.10 # function whichWeek(y, m, d, s) { s = 0 if (((y%4 == 0) && (y%100 != 0)) || (y%400 == 0)) if (M[2] == 28) M[2]++ if (y>0) s += --y + int(y/4) - int(y/100) + int(y/400) while (m > 1) s += M[--m] return (s+d)%7 } function printCalendar(y, m, d, nowWeek, i){ printf("%d%s %d%s\n", y, "年", m, "月") print "日 一 二 三 四 五 六 " printf("%s", repeat(" ", ((nowWeek+1)%7)*3)) for (i=1; i<=M[m]; i++) { if ((nowWeek+i) % 7 != 6) { printf("%2d ", i) } else { printf("%2d \n", i) } } print "\n" } function repeat(flag, time, i, str){ for (i=0; i 1 && ARGV[1] ~ /^\+.*$/) { print ARGC, ARGV[1] opt = substr(ARGV[1], 2) delete ARGV[1] } return opt } BEGIN { M[1] = 31 M[2] = 28 M[3] = 31 M[4] = 30 M[5] = 31 M[6] = 30 M[7] = 31 M[8] = 31 M[9] = 30 M[10] = 31 M[11] = 30 M[12] = 31 W[0] = "日" W[1] = "一" W[2] = "二" W[3] = "三" W[4] = "四" W[5] = "五" W[6] = "六" split(option(), date, ".") nowWeek = whichWeek(date[1]+0, date[2]+0, date[3]+0) if (date[3] != "") { print "星期" W[nowWeek] } else if (date[2] != "") { printCalendar(date[1]+0, date[2]+0, M[date[2]], nowWeek) } else { for (j=1; j<=12; j++) { printCalendar(date[1]+0, j, M[i], whichWeek(date[1]+0, j, 0)) } } }