Questions tagged [date]

the "date" tag is used to classify questions about date/calendar/time manipulation, visualisation, conversion... on Unix-like systems.

The date tag should be used for questions that are about handling calendar dates on Unix-like systems like for instance:

How to convert dates from different formats or calendars
How to do calculations on dates
The date-related utilities, in particular the date command and its variants like the GNU version. Or the dateutils series of commands.
The display, nationalisation of dates

Related tags:

clock: more appropriate for setting or synchronising the time on a system.
calendar: more appropriate for discussing calendaring software.
timezone: can be used in combination with date to further qualify timezone-specific questions.
ntp: for the network time protocol.
timestamps: for questions related to tag events with dates.

1159 questions

1842

votes

3 answers

Why does man print "gimme gimme gimme" at 00:30?

We've noticed that some of our automatic tests fail when they run at 00:30 but work fine the rest of the day. They fail with the message gimme gimme gimme in stderr, which wasn't expected. Why are we getting this output?

date man

asked Nov 20 '17 at 14:19

Jaroslav Kucera

9,422
5
15
28

284

votes

12 answers

How do I convert an epoch timestamp to a human readable format on the cli?

How do I convert an epoch timestamp to a human readable format on the cli? I think there's a way to do it with date but the syntax eludes me (other ways welcome).

command-line shell date

asked Oct 11 '10 at 13:46

xenoterracide

57,918
74
184
250

215

votes

5 answers

date command --iso-8601 option

This answer and comments mention --rfc-3339 and a "hidden" --iso-8601 option that I have used for a long time and now seems to be undocumented. When did that option documentation get removed from the --help text? Will the option go away anytime…

date

asked Oct 29 '14 at 14:58

Angelo

2,159
2
11
7

192

votes

5 answers

How do I add X days to date and get new date?

I have Linux ( RH 5.3) machine I need to add/calculate 10 days plus date so then I will get new date (expiration date)) for example # date Sun Sep 11 07:59:16 IST 2012 So I need to get NEW_expration_DATE = Sun Sep 21 07:59:16 IST…

linux bash shell-script date

asked Sep 23 '12 at 07:06

yael

186

votes

7 answers

How can I have `date` output the time from a different time zone?

I have a server running with the time zone set to UTC. It seemed like that was generally a good practice (please correct me if I'm wrong). Anyhow, one of the servers I connect to, in order to scp files, is running on EDT and stores files that I need…

date timezone

asked Sep 13 '12 at 21:24

cwd

44,479
71
146
167

183

votes

3 answers

Timezone setting in Linux

I'm setting the timezone to GMT+6 on my Linux machine by copying the zoneinfo file to /etc/localtime, but the date command is still showing the time as UTCtime-6. Can any one explain to me this behavior? I'm assuming the date command should display…

linux date time timezone

asked Jan 23 '14 at 04:36

Rahul Dhobi

2,037
3
14
11

150

votes

15 answers

How to compare two dates in a shell?

How can two dates be compared in a shell? Here is an example of how I would like to use this, though it does not work as-is: todate=2013-07-18 cond=2013-07-15 if [ $todate -ge $cond ]; then break fi How can I achieve…

shell-script shell date

asked Jul 25 '13 at 07:43

Abdul

1,691
2
13
7

137

votes

18 answers

Quickly calculate date differences

I often want to make some quick date calculations, such as: What is the difference between these two dates? What is the date n weeks after this other date? I usually open a calendar and count the days, but I think there should be a program/script…

date

asked Nov 15 '11 at 11:46

daniel kullmann

9,427
11
38
45

133

votes

5 answers

last time file opened

Is it possible to get the time when file was opened last time and sort all files in a directory by those times?

files ls date

asked Mar 08 '11 at 14:56

student

17,875
31
103
169

124

votes

4 answers

Day of week {0-7} in crontab has 8 options, but we have only 7 days in a week

Day-of-week: Allowed range 0 – 7. Sunday is either 0 or 7. I found this after Googling, my question is why should both values (0,7) correspond to Sunday?

cron date

asked Dec 20 '13 at 08:50

Ruban Savvy

8,409
8
29
43

115

votes

7 answers

Linux: set date through command line

How to change the system date in Linux ? I want to change: Only Year Only Month Only Date Any combination of above three

linux date clock

asked Aug 22 '14 at 09:40

SHW

14,454
14
63
101

105

votes

7 answers

Show the year while listing files in the current directory

I am working on a Red Hat server. The commands ls -l or ll giving me the date and time in format +"%b %-d %H:%M". I want to list the files in a way where the year when each was file created would appear within the date. How is that possible?

linux shell-script date

asked Oct 10 '12 at 07:05

WAEL

1,509
4
11
16

votes

9 answers

How to append date to backup filename

I need to make a backup of a file, and I would like to have a timestamp as part of the name to make it easier to differentiate. How would you inject the current date into a copy command? [root@mongo-test3 ~]# cp foo.txt {,.backup.`date`} cp:…

shell date cp

asked Oct 16 '13 at 23:14

spuder

17,643
36
91
119

votes

5 answers

Appending a current date from a variable to a filename

I'm trying to append the current date to the end of a file name like this: TheFile.log.2012-02-11 Here is what I have so far: set today = 'date +%Y' mkdir -p The_Logs & find . -name The_Logs -atime -1 -type d -exec mv \{} "The_Logs_+$today" \;…

bash shell rename date

asked Dec 04 '12 at 23:27

I AM L

votes

9 answers

How do I set time and date from the Internet?

How do I retrieve the date from the Internet and set my computer's clock, from the command line?

command-line date remote clock

asked Jun 12 '13 at 05:40

Mohsen

2,495
4
25
29

2 3

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