shell sleep until next full minute

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To execute a script on the next full minute I want to tell the sleep command to sleep until the next full minute. How can I do this?

asked Apr 6 '15 at 18:40

nnn

426139

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up vote
3
down vote

favorite

To execute a script on the next full minute I want to tell the sleep command to sleep until the next full minute. How can I do this?

asked Apr 6 '15 at 18:40

nnn

426139

add a commentÂ |Â

up vote
3
down vote

favorite

To execute a script on the next full minute I want to tell the sleep command to sleep until the next full minute. How can I do this?

asked Apr 6 '15 at 18:40

nnn

426139

To execute a script on the next full minute I want to tell the sleep command to sleep until the next full minute. How can I do this?

shell sleep

asked Apr 6 '15 at 18:40

nnn

426139

asked Apr 6 '15 at 18:40

nnn

426139

asked Apr 6 '15 at 18:40

nnn

426139

asked Apr 6 '15 at 18:40

nnn

426139

asked Apr 6 '15 at 18:40

nnn

426139

add a commentÂ |Â

2 Answers
2

active

oldest

votes

up vote
10
down vote

Ask for the date in seconds: date +%s and calculate the reminder of the devision with 60 (modulo: %). If you calculate 60 minus the modulo you get the remaining seconds to the next full minute. You could change this to wait until the next full hour (change 60 to 3600).

sleep $((60 - $(date +%s) % 60)) &&
<yourscript>

To just sleep until the next full minute you can even make it shorter (without the modulo):

sleep $((60 - $(date +%S) )) &&
<yourscript>

Also be aware of this question and answer: sleep until next occurence of specific time.

edited Apr 13 '17 at 12:36

Communityâ™¦

answered Apr 6 '15 at 18:40

nnn

426139

5

This computation is overkill, since date provides not only "seconds since epoch" but also plain "seconds". So sleep $((60 - $(date +%S) )) suffices.
â€“Â Janis
Apr 6 '15 at 19:22

good to know that it always can be done shorter, I will edit it. But for every other timespan you will need seconds since epoch, right?
â€“Â nnn
Apr 7 '15 at 5:46

For a hypothetical other question than the one asked, yes. But be aware that date's format specifier %s (lower case) is also non-standard.
â€“Â Janis
Apr 7 '15 at 11:21

add a commentÂ |Â

up vote
0
down vote

sleep $(( 60 - 10#$(date +%S) )) sleeps until the next full minute. Don't forget the 10# prefix! Otherwise your code will interpret "08" and "09" as invalid references to an octal number.

Or you can prevent the date command from padding the seconds with '0' by following the '%' with '-'
sleep $(( 60 - $(date +%-S) ))

edited 4 mins ago

Communityâ™¦

answered Apr 23 at 21:00

William Dye

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

up vote
10
down vote

sleep $((60 - $(date +%s) % 60)) &&
<yourscript>

To just sleep until the next full minute you can even make it shorter (without the modulo):

sleep $((60 - $(date +%S) )) &&
<yourscript>

Also be aware of this question and answer: sleep until next occurence of specific time.

edited Apr 13 '17 at 12:36

Communityâ™¦

answered Apr 6 '15 at 18:40

nnn

426139

5

This computation is overkill, since date provides not only "seconds since epoch" but also plain "seconds". So sleep $((60 - $(date +%S) )) suffices.
â€“Â Janis
Apr 6 '15 at 19:22

good to know that it always can be done shorter, I will edit it. But for every other timespan you will need seconds since epoch, right?
â€“Â nnn
Apr 7 '15 at 5:46

For a hypothetical other question than the one asked, yes. But be aware that date's format specifier %s (lower case) is also non-standard.
â€“Â Janis
Apr 7 '15 at 11:21

add a commentÂ |Â

up vote
10
down vote

sleep $((60 - $(date +%s) % 60)) &&
<yourscript>

To just sleep until the next full minute you can even make it shorter (without the modulo):

sleep $((60 - $(date +%S) )) &&
<yourscript>

Also be aware of this question and answer: sleep until next occurence of specific time.

edited Apr 13 '17 at 12:36

Communityâ™¦

answered Apr 6 '15 at 18:40

nnn

426139

5

This computation is overkill, since date provides not only "seconds since epoch" but also plain "seconds". So sleep $((60 - $(date +%S) )) suffices.
â€“Â Janis
Apr 6 '15 at 19:22

good to know that it always can be done shorter, I will edit it. But for every other timespan you will need seconds since epoch, right?
â€“Â nnn
Apr 7 '15 at 5:46

For a hypothetical other question than the one asked, yes. But be aware that date's format specifier %s (lower case) is also non-standard.
â€“Â Janis
Apr 7 '15 at 11:21

add a commentÂ |Â

up vote
10
down vote

sleep $((60 - $(date +%s) % 60)) &&
<yourscript>

To just sleep until the next full minute you can even make it shorter (without the modulo):

sleep $((60 - $(date +%S) )) &&
<yourscript>

Also be aware of this question and answer: sleep until next occurence of specific time.

edited Apr 13 '17 at 12:36

Communityâ™¦

answered Apr 6 '15 at 18:40

nnn

426139

sleep $((60 - $(date +%s) % 60)) &&
<yourscript>

To just sleep until the next full minute you can even make it shorter (without the modulo):

sleep $((60 - $(date +%S) )) &&
<yourscript>

Also be aware of this question and answer: sleep until next occurence of specific time.

edited Apr 13 '17 at 12:36

Communityâ™¦

answered Apr 6 '15 at 18:40

nnn

426139

edited Apr 13 '17 at 12:36

Communityâ™¦

edited Apr 13 '17 at 12:36

Communityâ™¦

edited Apr 13 '17 at 12:36

Communityâ™¦

answered Apr 6 '15 at 18:40

nnn

426139

answered Apr 6 '15 at 18:40

nnn

426139

answered Apr 6 '15 at 18:40

nnn

426139

5

This computation is overkill, since date provides not only "seconds since epoch" but also plain "seconds". So sleep $((60 - $(date +%S) )) suffices.
â€“Â Janis
Apr 6 '15 at 19:22

good to know that it always can be done shorter, I will edit it. But for every other timespan you will need seconds since epoch, right?
â€“Â nnn
Apr 7 '15 at 5:46

For a hypothetical other question than the one asked, yes. But be aware that date's format specifier %s (lower case) is also non-standard.
â€“Â Janis
Apr 7 '15 at 11:21

add a commentÂ |Â

5

This computation is overkill, since date provides not only "seconds since epoch" but also plain "seconds". So sleep $((60 - $(date +%S) )) suffices.
â€“Â Janis
Apr 6 '15 at 19:22

good to know that it always can be done shorter, I will edit it. But for every other timespan you will need seconds since epoch, right?
â€“Â nnn
Apr 7 '15 at 5:46

For a hypothetical other question than the one asked, yes. But be aware that date's format specifier %s (lower case) is also non-standard.
â€“Â Janis
Apr 7 '15 at 11:21

This computation is overkill, since date provides not only "seconds since epoch" but also plain "seconds". So sleep $((60 - $(date +%S) )) suffices.
â€“Â Janis
Apr 6 '15 at 19:22

good to know that it always can be done shorter, I will edit it. But for every other timespan you will need seconds since epoch, right?
â€“Â nnn
Apr 7 '15 at 5:46

For a hypothetical other question than the one asked, yes. But be aware that date's format specifier %s (lower case) is also non-standard.
â€“Â Janis
Apr 7 '15 at 11:21

add a commentÂ |Â

up vote
0
down vote

sleep $(( 60 - 10#$(date +%S) )) sleeps until the next full minute. Don't forget the 10# prefix! Otherwise your code will interpret "08" and "09" as invalid references to an octal number.

Or you can prevent the date command from padding the seconds with '0' by following the '%' with '-'
sleep $(( 60 - $(date +%-S) ))

edited 4 mins ago

Communityâ™¦

answered Apr 23 at 21:00

William Dye

111

add a commentÂ |Â

up vote
0
down vote

sleep $(( 60 - 10#$(date +%S) )) sleeps until the next full minute. Don't forget the 10# prefix! Otherwise your code will interpret "08" and "09" as invalid references to an octal number.

Or you can prevent the date command from padding the seconds with '0' by following the '%' with '-'
sleep $(( 60 - $(date +%-S) ))

edited 4 mins ago

Communityâ™¦

answered Apr 23 at 21:00

William Dye

111

add a commentÂ |Â

up vote
0
down vote

sleep $(( 60 - 10#$(date +%S) )) sleeps until the next full minute. Don't forget the 10# prefix! Otherwise your code will interpret "08" and "09" as invalid references to an octal number.

Or you can prevent the date command from padding the seconds with '0' by following the '%' with '-'
sleep $(( 60 - $(date +%-S) ))

edited 4 mins ago

Communityâ™¦

answered Apr 23 at 21:00

William Dye

111

sleep $(( 60 - 10#$(date +%S) )) sleeps until the next full minute. Don't forget the 10# prefix! Otherwise your code will interpret "08" and "09" as invalid references to an octal number.

Or you can prevent the date command from padding the seconds with '0' by following the '%' with '-'
sleep $(( 60 - $(date +%-S) ))

edited 4 mins ago

Communityâ™¦

answered Apr 23 at 21:00

William Dye

111

edited 4 mins ago

Communityâ™¦

edited 4 mins ago

Communityâ™¦

edited 4 mins ago

Communityâ™¦

answered Apr 23 at 21:00

William Dye

111

answered Apr 23 at 21:00

William Dye

111

answered Apr 23 at 21:00

William Dye

111

add a commentÂ |Â

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