原文地址:http://bbs.chinaunix.net/thread-1772999-1-1.html
当你遇到一个date命令不给力的系统时,可以试试这几个小函数。
#日期转天数
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function date2days {
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echo "$*" | awk '{
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z=int((14-$2)/12); y=$1+4800-z; m=$2+12*z-3;
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j=int((153*m+2)/5)+$3+y*365+int(y/4)-int(y/100)+int(y/400)-2472633;
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print j
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}'
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}
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date2days `echo "2010-08-18 18:59:19" | sed 's/-/ /g;s/:/ /g'`
#天数转日期
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function days2date {
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echo "$1" | awk '{
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a=$1+2472632; b=int((4*a+3)/146097); c=int((-b*146097)/4)+a;
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d=int((4*c+3)/1461); e=int((-1461*d)/4)+c; m=int((5*e+2)/153);
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dd=-int((153*m+2)/5)+e+1; mm=int(-m/10)*12+m+3; yy=b*100+d-4800+int(m/10);
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printf ("%4d-%02d-%02d\n",yy,mm,dd)
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}'
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}
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days2date 14839
#日期转分钟
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function date2minutes {
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echo "$*" | awk '{
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z=int((14-$2)/12); y=$1+4800-z; m=$2+12*z-3;
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j=int((153*m+2)/5)+$3+y*365+int(y/4)-int(y/100)+int(y/400)-2472633;
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j=j*1440+$4*60+$5
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print j
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}'
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}
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date2minutes `echo "2010-08-18 18:59:19" | sed 's/-/ /g;s/:/ /g'`
#分钟转日期
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function minutes2date {
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echo "$1" | awk '{
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i=$1; nn=i%60; i=int(i/60); hh=i%24; dd=int(i/24); i=int(i/24);
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a=i+2472632; b=int((4*a+3)/146097); c=int((-b*146097)/4)+a;
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d=int((4*c+3)/1461); e=int((-1461*d)/4)+c; m=int((5*e+2)/153);
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dd=-int((153*m+2)/5)+e+1; mm=int(-m/10)*12+m+3; yy=b*100+d-4800+int(m/10);
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printf ("%4d-%02d-%02d %02d:%02d\n",yy,mm,dd,hh,nn)
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}'
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}
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minutes2date 21369299
#日期转秒数
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function date2seconds {
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echo "$*" | awk '{
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z=int((14-$2)/12); y=$1+4800-z; m=$2+12*z-3;
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j=int((153*m+2)/5)+$3+y*365+int(y/4)-int(y/100)+int(y/400)-2472633;
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j=j*86400+$4*3600+$5*60+$6
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print j
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}'
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}
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date2seconds `echo "2010-08-18 18:59:19" | sed 's/-/ /g;s/:/ /g'`
#秒数转日期
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function seconds2date {
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echo "$1" | awk '{
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i=$1; ss=i%60; i=int(i/60); nn=i%60; i=int(i/60); hh=i%24; dd=int(i/24); i=int(i/24);
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a=i+2472632; b=int((4*a+3)/146097); c=int((-b*146097)/4)+a;
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d=int((4*c+3)/1461); e=int((-1461*d)/4)+c; m=int((5*e+2)/153);
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dd=-int((153*m+2)/5)+e+1; mm=int(-m/10)*12+m+3; yy=b*100+d-4800+int(m/10);
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printf ("%4d-%02d-%02d %02d:%02d:%02d\n",yy,mm,dd,hh,nn,ss)
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}'
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}
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seconds2date 1282157959
#日期转毫秒
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function date2milliseconds {
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echo "$*" | awk '{
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z=int((14-$2)/12); y=$1+4800-z; m=$2+12*z-3;
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j=int((153*m+2)/5)+$3+y*365+int(y/4)-int(y/100)+int(y/400)-2472633;
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j=j*86400+$4*3600+$5*60+$6
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printf ("%d%s\n",j,$7)
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}'
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}
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date2milliseconds `echo "2010-08-18 18:59:19.073" | sed 's/-/ /g;s/:/ /g;s/\./ /g'`
#毫秒转日期
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function milliseconds2date {
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echo "$1" | awk '{
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i=$1; ms=i%1000; i=int(i/1000); ss=i%60; i=int(i/60); nn=i%60; i=int(i/60); hh=i%24; dd=int(i/24);
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i=int(i/24);
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a=i+2472632; b=int((4*a+3)/146097); c=int((-b*146097)/4)+a;
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d=int((4*c+3)/1461); e=int((-1461*d)/4)+c; m=int((5*e+2)/153);
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dd=-int((153*m+2)/5)+e+1; mm=int(-m/10)*12+m+3; yy=b*100+d-4800+int(m/10);
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printf ("%4d-%02d-%02d %02d:%02d:%02d.%03d\n",yy,mm,dd,hh,nn,ss,ms)
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}'
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}
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milliseconds2date 1282157959073
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/24946452/viewspace-1989368/
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