我有两个时间字符串;例如。同一天“09:11”和“17:22”(格式为hh:mm)。如何计算这两者之间的分钟时差?
标准date
库可以执行此操作吗?
示例:
#!/bin/bash
MPHR=60 # Minutes per hour.
CURRENT=$(date -u -d '2007-09-01 17:30:24' '+%F %T.%N %Z')
TARGET=$(date -u -d'2007-12-25 12:30:00' '+%F %T.%N %Z')
MINUTES=$(( $(diff) / $MPHR ))
在hh:mm
中给出小时和分钟是否有更简单的方法答案 0 :(得分:15)
纯bash解决方案:
old=09:11
new=17:22
# feeding variables by using read and splitting with IFS
IFS=: read old_hour old_min <<< "$old"
IFS=: read hour min <<< "$new"
# convert hours to minutes
# the 10# is there to avoid errors with leading zeros
# by telling bash that we use base 10
total_old_minutes=$((10#$old_hour*60 + 10#$old_min))
total_minutes=$((10#$hour*60 + 10#$min))
echo "the difference is $((total_minutes - total_old_minutes)) minutes"
使用date
的另一种解决方案(我们使用小时/分钟,因此日期并不重要)
old=09:11
new=17:22
IFS=: read old_hour old_min <<< "$old"
IFS=: read hour min <<< "$new"
# convert the date "1970-01-01 hour:min:00" in seconds from Unix EPOCH time
sec_old=$(date -d "1970-01-01 $old_hour:$old_min:00" +%s)
sec_new=$(date -d "1970-01-01 $hour:$min:00" +%s)
echo "the difference is $(( (sec_new - sec_old) / 60)) minutes"
答案 1 :(得分:14)
我会将日期转换为UNIX时间戳;您可以减去以秒为单位得到差异,然后除以60:
#!/bin/bash
MPHR=60 # Minutes per hour.
CURRENT=$(date +%s -d '2007-09-01 17:30:24')
TARGET=$(date +%s -d'2007-12-25 12:30:00')
MINUTES=$(( ($TARGET - $CURRENT) / $MPHR ))
答案 2 :(得分:4)
MPHR=60
CURRENT=09:11
TARGET=17:22
echo $(( ( 10#${TARGET:0:2} - 10#${CURRENT:0:2} ) * MPHR + 10#${TARGET:4} - 10#${CURRENT:4} ))
答案 3 :(得分:4)
我是这样做的:
START=$(date +%s);
sleep 1; # Your stuff
END=$(date +%s);
echo $((END-START)) | awk '{printf "%d:%02d:%02d", $1/3600, ($1/60)%60, $1%60}'
非常简单,在开始时取秒数,然后在结束时取秒数,然后以分钟为单位打印差异:秒。
答案 4 :(得分:3)
我正在寻找一个秒的解决方案。在此处找到:How to calculate time difference in bash script?
#!/bin/bash
string1="10:33:56"
string2="10:36:10"
StartDate=$(date -u -d "$string1" +"%s")
FinalDate=$(date -u -d "$string2" +"%s")
date -u -d "0 $FinalDate sec - $StartDate sec" +"%H:%M:%S"
在这里,我为Gilles的解决方案增加了几秒钟:
function countTimeDiff() {
timeA=$1 # 09:59:35
timeB=$2 # 17:32:55
# feeding variables by using read and splitting with IFS
IFS=: read ah am as <<< "$timeA"
IFS=: read bh bm bs <<< "$timeB"
# Convert hours to minutes.
# The 10# is there to avoid errors with leading zeros
# by telling bash that we use base 10
secondsA=$((10#$ah*60*60 + 10#$am*60 + 10#$as))
secondsB=$((10#$bh*60*60 + 10#$bm*60 + 10#$bs))
DIFF_SEC=$((secondsB - secondsA))
echo "The difference is $DIFF_SEC seconds.";
SEC=$(($DIFF_SEC%60))
MIN=$((($DIFF_SEC-$SEC)%3600/60))
HRS=$((($DIFF_SEC-$MIN*60)/3600))
TIME_DIFF="$HRS:$MIN:$SEC";
echo $TIME_DIFF;
}
答案 5 :(得分:2)
STARTTIME=$(date +%s)
你的代码:
ENDTIME=$(date +%s)
secs=$(($ENDTIME - $STARTTIME))
printf 'Elapsed Time %dh:%dm:%ds\n' $(($secs/3600)) $(($secs%3600/60)) $(($secs%60))
答案 6 :(得分:1)
@Dorian
如果你只是想知道一个程序运行多长时间:时间,男人,男人的时间!
琐碎的例子:
jonathan@Odin:~$ time sleep 1
real 0m1.001s
user 0m0.000s
sys 0m0.000s
好的,它不会在几秒钟内给出结果,但您可以使用格式字符串,或者更简单地使用POSIX合规性选项:
jonathan@Odin:~$ time -p sleep 20
real 20.00
user 0.00
sys 0.00