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

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2
votes
1answer
348 views

Change System Time/Date

I'm running Linux Mint 15 with KDE 4.10.4+ Here's what I get when I run date: user:~ > date Die Okt 29 15:47:54 UTC 2013 Where "Die Okt" indicates a German-language setting, which I don't ...
4
votes
1answer
121 views

date modifiers explained

Again, I found some interesting I don't understand in an info page, in info dateto be precisely: An optional modifier can follow the optional flag and width specification. The modifiers are: ...
5
votes
5answers
7k views

Next day of the user entered date - date +1 day

I am new to scripting. I need a script in the AIX environment to get the next days date based on the date entered by the user. After hard time browsing for this, I got a piece of code which does the ...
1
vote
3answers
1k views

Batch file move to directory structure based on filename

I am writing a script to move files into directories based on the filename. Files have yyyyddmm-xxxxxxx.jpg name format. The desired directory structure is in the format 2013/01 Jan/31. I am unable ...
5
votes
2answers
4k views

Need to get the difference between two time in seconds

The following two variables contain the start time and the end time , need to get the difference between these two time in seconds start_time=06:07:25 end_time=07:02:08 Desired Output diff_time= ...
0
votes
1answer
3k views

Getting a date format with grep

I've looked at similar questions and tried most suggestions, but none of them got me anywhere, even though i have a fairly simple task I think :S. I'm fairly new to this whole thing, so I've run out ...
4
votes
2answers
395 views

Bash-script. Shift seconds

Maybe somebody can help me. In bash I don't know how to do that. I need to do a bash-script. At stdin I have .srt file of subtitles in this format: num HH:MM:SS,SSS --> HH:MM:SS,SSS text line 1 ...
9
votes
5answers
28k views

How to append date to backup file

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? ...
4
votes
4answers
6k views

Convert Unix timestamp into human-readable format on AIX

I need to convert unix timestamp (number of seconds since 1970, e.g. 1381260225 is Tue Oct 8 19:23:45 GMT 2013) into a standard human-readable format. I could get some answers by googling but those ...
-1
votes
3answers
374 views

make ls display current date and time

I'm new to Linux and I'd like ls to display current date and time as a side effect every time I use ls. How do I go about changing what a command does?
3
votes
2answers
3k views

Sleep until next occurrence of specific time

I need a series of commands or a single command that sleeps until the next occurrence of a specific time like "4:00" occurs. How would I do that? The at command or a cronjob is not a option because ...
2
votes
1answer
147 views

Any better method than this for sorting files by their creation date?

I needed to display a list of directories sorted by their creation date and I came up with this code snippet that I thought was kind of clever. Is there a more obvious way to do this that I'm missing? ...
4
votes
3answers
7k views

Subtracting dates in unix

Is there a way in unix to subtract a month or at least 30 days from a specific date? The date is to be inputted by the user. Example: 2012-11-19 - 1 month = 2013-10-19 This one doesn't work: date ...
1
vote
2answers
2k views

How to print dates between two different dates [duplicate]

I want to print dates between 2 different dates (i.e. start date and two dates) If start date is 2013-09-05 and end date is 2013-09-10, then I want result as 2013-09-05 2013-09-06 2013-09-07 ...
13
votes
3answers
5k views

What is the recommended way to synchronize time using NTP?

This question has come up a number of times in a localized way, this question is meant to provide the preferred/best method for synchronizing a system's clock using NTP. The solution should handle ...
3
votes
2answers
3k views

How to force the time and date settings to refresh from the internet?

I'm running Ubuntu 12.04 LTS under vmWare. When I restart a suspended image, the system clock doesn't detect that the system time is out of date. In the Time and Date settings dialog, I've selected ...
2
votes
1answer
4k views

Unix last password change date

My understanding is that the last change date(in /etc/shadow) is the number of days since 01/01/1970 that the password was changed, but I'm seeing numbers like 19708 which translate to 17/12/2023 ...
1
vote
2answers
126 views

How to set and read time w/o language barrier in linux?

Currently when you run the command date the output is Wed Sep 18 07:23:28 EDT 2013 and if you want to change the date you'd have to run date -s "18 SEP 2013 07:15:00" if you try to change ...
0
votes
3answers
137 views

If you want to get a future date, why can't you just get the current date and use sed/awk/etc?

I've just looked at this question. The first answer states how to get a future date directly from the date command. Why couldn't you just use text manipulation to increment the date? Basically: date ...
1
vote
3answers
10k views

How to convert from one date format to other format?

I have one problem with my date format. I want to change from one format to the other and vice versa. My date formats are Format 1 YYYY-MM-DD Format 2 MM/DD/YYYY I want to change format 1 to ...
3
votes
0answers
89 views

How do I recursively set the date created attribute to the date modified attribute on NTFS-3G?

In my first question, I asked how to get the "Date created" field in NTFS-3G. Now, that I know I can get the "Date created", I have started adding files onto my NTFS-3G partition and would like to set ...
0
votes
2answers
194 views

Transform list of files (with date) into list of dates

I have a directory where I store backups. The are in the format Complete Backup YYYY-MM-DD hh-mm-ss.tar.bz2 I have found out that you can feed a date into the date command using date --date="YY-MM-DD ...
3
votes
3answers
249 views

how to create a data file with a column of date from day1 to dayN?

I was wondering if I could generate a hourly or daily time step date in a column starting from some year in the past to some day in the near past or today. to be more clear, I want to create one ...
2
votes
4answers
595 views

How to get a previous date using a reference to a file with the date command?

I'm trying to get Previous date of reference file. What I've tried : [rahul@testsrv]$ date +%F -r /tmp/ftpbkp.log 2013-08-27 [rahul@testsrv]$ date +%F -r /tmp/ftpbkp.log -d "1 day ago" date: the ...
1
vote
3answers
2k views

How to combine bash arithmetic with command output?

Suppose you had two commands: First command let foo=2+2 echo $foo 4 Second command date "%s" 1377107324 How would you combine them? Attempt 1. echo The epoch time is: `date +%s` in 100 ...
1
vote
2answers
471 views

Moving Older Version Files to another folder via a script [closed]

I am trying to find a way of getting my cmd script to look through my folder, find the older versions of the pdf docs in the folder and move them to another folder called older versions. Problem I am ...
0
votes
1answer
2k views

How do you time how long a command took to run? [duplicate]

How would you find out how long a running process took to complete? Example: date; dd bs=1m if=/foo of=bar; date ^This example only has 1 second of resolution. Any shell is acceptable.
1
vote
1answer
3k views

convert timestamp to formatted time OSX

I had this working on Ubuntu but I'm now trying to run the script on OSX but it seems that the formatting of date is different. Originally I had: date -d "$MODDATE" +%F" "%H":"%M where $MODDATE is ...
3
votes
3answers
335 views

sort lines according to day

I have a text file in following format, and I need to sort the lines according to date. Is there some simple way to do it (preferably in bash) ? 2013-May-30 2 2013-May-21 10 2013-Jun-27 8 ...
1
vote
2answers
12k views

Date time in Linux bash [closed]

I am trying to display a date time in the form of 07/08/2013 16:52:13 by using command in bash script: dt=`date '+%d/%m/%Y_%H:%M:%S'` which variable is used to populate a CSV file. The only ...
1
vote
5answers
394 views

log file: only process entries older than “MMM DD HH:MM:SS”

I need to process my logfile /var/log/mylogs.log. I am only interested in the new entries, lets say, since Jul 20 15:00:00 but the log contains older entries as well. Is there any simple way, how I ...
1
vote
1answer
131 views

GNU date epoch +%s vs. now in timestamp phrases with computations including months?

I am trying to do date computations in a shell script using gnu date with timestamp phrases and fail to explain these differences. Can someone enlighten me? Is this a bug? % date -u -d "now" Fri Aug ...
1
vote
1answer
2k views

How to set system time from Unix timestamp

I know arbitrary timestamp and I want to set system time using it. I've tried following: date +%s -s "1371729865" date +%s -s '1371729865' date +%s -s 1371729865 but without success. The idea is, ...
1
vote
2answers
54 views

How to write out the next 3 or X days with a command?

I can give the day for today in a command: TODAY=`date +%Y.%m.%d.` but how can I give out the next 3 or X days in a command? (Ubuntu 12.04)
0
votes
3answers
47 views

how to touch files like report-07/05/13

when I want to touch files like report-05/07/13 with command touch report-$(date +%D) it gives me an error like this: touch: cannot touchreport-07/05/13': No such file or directory` How can I build ...
2
votes
2answers
3k views

How to find files by the time in their filename? [duplicate]

We have a directory contains files which contains time in their filename ./test.2013-06-11_06-01.gz ./test.2013-06-12_01-01.gz ./test.2013-06-13_03-01.gz ./test.2013-06-14_03-01.gz ...
8
votes
1answer
5k views

Removing leading zeros from DATE

I made an alias of the date command to display date in the following format: 2013.06.14.12.10.02 using this command: alias date = date +"%Y.%m.%d.%H.%M.%S" Everything works great, except I ...
4
votes
6answers
10k views

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?
19
votes
3answers
3k views

How does touch -t work internally?

How does touch -t command works exactly, internally (I tried to find its source code but couldn't)?
1
vote
2answers
140 views

agonizing over the Unix epoch [closed]

I am having some trouble understanding what exactly 00:00:00 Coordinated Universal Time (UTC), 1 January 1970 means. Below are two possible ways to interpret 00:00:00 according to my understanding, ...
0
votes
4answers
74 views

How to make 1:52 to 01:52 with eg.: sed?

INPUT: a|2013.06.13. 13:22|xx b|2013.06.13. 1:52 |xx c|2013.06.13. 2:26 |xx OUTPUT: a|2013.06.13. 13:22|xx b|2013.06.13. 01:52 |xx c|2013.06.13. 02:26 |xx How can I make the 1:52 to 01:52 in ...
3
votes
1answer
11k views

Read log file between two dates

I have to read log file between and my question is how to get only the text in the file wich is between two dates using unix commands? Every line contain date and I want to get the text in the file ...
3
votes
2answers
6k views

Linux listing files between two date without touch command

I need a command which will list the files between given date and time (YYYYMMDDHHMMSS - format) in to a text file. I don want to use touch command as its creating permission issue. I am new to this ...
0
votes
2answers
88 views

Executing a program according to the last modified date

I need to write a script which would execute some executables in a directory according to the last modified date. The oldest should run first. How do I do it? This is what I have done so far for f ...
4
votes
1answer
99 views

How does coreutil's date manage to get such weird results?

I was playing around with date to try to convert expressions such as "2 hours" to a number of seconds like 7200. I thought I could perform this with invocations such as: date -d "1970-01-01 00:00:00 ...
1
vote
1answer
108 views

How to display Discordian date?

I am a strong believer in Discordianism. Yet most mostly I am confronted with the time measurement of pesky heathens. How do I know what date it really is?
4
votes
4answers
16k views

Command 'date +FORMAT' — What are %a, %A, %b, etc. called?

The date command outputs the current date and time like this: Fri Apr 12 15:04:03 UTC 2013. To have the output date-time in a custom format we can use date +FORMAT, for example, like this: date ...
2
votes
2answers
6k views

How to scp/tar files that are in between specific days?

I need to copy db log files between two suse servers where I am interested in files ONLY in between 10.3.2013 - 13.3.2013 It is desired to compress the files before copying so I tar them and scp. ...
4
votes
2answers
9k views

Correct use of TZ, date, and hwclock?

I'm working on an Buildroot developed ARM/ulibc Linux distribution for a custom board. I'm trying to understand the relationship between If I do this, as I've seen on a few examples online: # date ...
7
votes
3answers
4k views

how to suppress bash octal number interpretation? (to be interpreted as decimal)

I have this: date +"%H hours and %M minutes" I use festival to say it up.. but it says like: "zero nine hours".. I want it to say "nine hours"! but date always give me 09... so I wonder if bash ...