How to convert 24 Hr Time Format into Minutes?

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07-02-2013

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How to convert 24 Hr Time Format into Minutes?

Hello All

I know the general Logic behind it but do not know the shell programming so much.

For Example, The Time is stored in a given Variable

if the Time is 0800 then i need to extract the last digits of the number and Add it to the Remaining Digit of the Number which is multiplied by 60.

08 00 will be 08 * 60 + 00 = 480 Minutes

Or 1530 will be 15*60 + 30 = 930 minutes.

Regards
Ajesh

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something like this?

Code:

 
echo "1530"|awk '{print substr($0,1,2)*60+substr($0,3)}'

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Code:

[user@host ~]$ x=1530
[user@host ~]$ y=$(( $(( $(( $(( $x - $(( $x % 100 )) )) / 100 )) * 60 )) + $(( $x % 100 )) ))
[user@host ~]$ echo $y
930

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Quote:

Originally Posted by balajesuri

Code:

[user@host ~]$ x=1530
[user@host ~]$ y=$(( $(( $(( $(( $x - $(( $x % 100 )) )) / 100 )) * 60 )) + $(( $x % 100 )) ))
[user@host ~]$ echo $y
930

Code:

$ x=1530
$ y=$(( (((x - ( x % 100 )) / 100 ) * 60 ) + ( x % 100 ) ))
$ echo $y
930

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Assuming bash shell:

Code:

$ x=1530
$ y=$(( (x / 100)*60 + (x % 100) ))
$ echo $y
930

This User Gave Thanks to fpmurphy For This Post:

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Quote:

Originally Posted by fpmurphy

Assuming bash shell:

Code:

$ x=1530
$ y=$(( (x / 100)*60 + (x % 100) ))
$ echo $y
930

That works with any POSIX conforming shell (such as a 1993 or later version of the Korn shell); not just bash. Another way to do it with any POSIX conforming shell is:

Code:

for x in 0800 0815 0959 1530
do	y=$(( ${x%??} * 60 + ${x#??} ))
	echo $x $y
done

which produces the following output:

Code:

Last edited by Don Cragun; 07-03-2013 at 02:18 PM.. Reason: Fix typo

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There is always the interactive mode to learn from:-

Code:

Last login: Tue Jul  2 17:58:45 on ttys000
AMIGA:barrywalker~> hhmm=0457
AMIGA:barrywalker~> hh=${hhmm:0:2}
AMIGA:barrywalker~> echo $hhmm
0457
AMIGA:barrywalker~> echo $hh
04
AMIGA:barrywalker~> hh=$[ ( hh * 60 ) ]
AMIGA:barrywalker~> echo $hh
240
AMIGA:barrywalker~> mm=${hhmm:2:2}
AMIGA:barrywalker~> echo $mm
57
AMIGA:barrywalker~> mins=$[ ( hh + mm ) ]
AMIGA:barrywalker~> echo $mins
297
AMIGA:barrywalker~>

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