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

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1
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2answers
36 views

Setting old system date

I have a Centos 7 server running in a cloud-server provider (ProfitBricks). I need to setup a demo system but is really hard to create daily fake data. My idea is to configure this server with an old ...
1
vote
1answer
37 views

Compare dates in a list

So I have a list of dates and I need to develop a script that keeps a rolling count of how many dates are older than 14 days (date --date="14 days ago" +%Y%m%d). Not sure how I can have the date check ...
0
votes
1answer
170 views

Check if date is n years old

I have a variable $date with format yyyy-mm-dd and I would like to check if it is exactly 1 year, 2 years (and so on) old. That's what I tried so far: dates=$(echo $date | cut -c6-10) todays=$(date +...
4
votes
4answers
43 views

Generate line number / “index” within a range from a date seed value

I'm trying to create a bash script to display a word of the day (random for each day). I have a dictionary file that on each line has a word and its definition. I'd like to use date to get a unique ...
1
vote
1answer
29 views

Converting date/time to current JDN

I would like to convert a date/times to the Julian Date (number of days since Jan 1 4713 BCE, not the YY-ddd form where ddd is the day number of the current year). This doesn't seem to be built-in to ...
0
votes
1answer
62 views

Outputting date from an array with bash

I'm trying to put together a script that will detect when someone joins my network via DHCP and then will email me the details. The problem I'm having is with parsing the epoch time in the loop. I've ...
0
votes
3answers
103 views

Can I obtain microsecond granularity when I calculate the number of nanoseconds from Windows Epoch to today?

Using Ubuntu Linux 16.04 and g++, I was wondering if could obtain microsecond or millisecond granularity when I calculate the number of nanoseconds between Unix Epoch or Windows Epoch and an arbitrary ...
2
votes
3answers
47 views

Get file modification time in yyyymmddhh24miss format

I want to get the modification time of a file in a specific format. How can I do that ? I know about stat -c %x find.txt but I need this format: yyyymmddhh24miss I'm using ksh on Linux 2.6.18-...
0
votes
1answer
64 views

inserting modified date into filename - 2 cases

I believe I'll ask two separate questions, but the context is the same, so I hope it's alright. I have an output of few processes as presented below (which I can't modify). 25978.csv 26044.csv 26865....
0
votes
2answers
30 views

FreeBSD date utility -r switch confuses me

I have a bash script which I need to convert from linux to FreeBSD, but I'm obviously too stupid to read the man page in a proper way. The script has a line along: date +%d -r "$file" which works ...
2
votes
2answers
76 views

Getting the date from a ssh client

I have a problem with an embedded computer where it does not have a separate Real Time Clock and as such every time I reboot it, it loses track of the current date. This is very annoying because lots ...
1
vote
1answer
16 views

Display the package date in the Aptitude UI

The Aptitude README (on Ubuntu 16.04, under /usr/share/doc/aptitude/README) gives the escape codes to customize how the packages are displayed in the UI (typing aptitude without any parameters at the ...
3
votes
2answers
45 views

Prevent updates to 'modified time' when copying files to a mounted Samba folder

I don’t want the “last modified” attribute to be changed to the current date when copying files to a mounted Samba folder. How can I do this? This behavior occurs with (K)Ubuntu 12.04 and Ubuntu 15....
4
votes
2answers
93 views

Millisecond time in a shell script

How can someone print the entire time ie, for example 12:07:59:393(HH:MM:SS:milliseconds) in milliseconds. I found a lot of posts saying how to print Milliseconds along witht HHMMSS but I want to ...
-1
votes
1answer
19 views

Why %H%M%S is not working in .screenrc?

According to this answer, I can rename logfile of screen with date to avoid logfile appending problem But %c used in that answer contains a colon, like 19:00. Since I have to sync files with windows, ...
0
votes
1answer
41 views

command /opt/bin/date --date '-15 minutes 2016-04-27T14:14:47' producing result many hours before stated time

I'm using the following command in an attempt to work out the time 15 minutes before the timestamp: /opt/bin/date --date "-15 minutes 2016-04-28T16:58:55" '+%Y-%m-%dT%H:%I:%S' The problem is the ...
3
votes
1answer
75 views

How do I set up busybox to allow a non-root user to set the date?

I have an embedded system built with busy box. I allow a user named "app" to download a program/script to a directory and it will be run on boot. The program should be allowed to set the date. It ...
-1
votes
1answer
24 views

adding date to beginning of file name using script

I have multiple files that need to be renamed with a date added to the beginning of the file name that I am trying to script. I'm using the cp command because I need to keep the original file I need ...
1
vote
2answers
60 views

at now - different date

This is my current system date root@48392:/home/# date Mon Apr 25 19:08:13 CEST 2016 Now I set up an at job... root@48392:/home/# echo "ls" | at now warning: commands will be executed using /bin/...
1
vote
4answers
151 views

Dangers of using rm command with variables

I am creating a crontab that compresses 15 minute clips from my security camera into one file (24 Hours Long) and then having the clips delete. avimerge -o /media/jmartin/Cams/video/Full_$(date +%F --...
0
votes
1answer
55 views

How do you put date and time in a file name?

I'm trying to execute a command and would like to put the date and time in the output file name. Here is a sample command I'd like to run. md5sum /etc/mtab > 2016_4_25_10_30_AM.log The date time ...
1
vote
2answers
55 views

Time travelling and log files

When testing changes to a legacy codebase on a development system, my preferred method of testing is to set the system clock to a date in the past, eg date -s '-7 days', I then playback some ...
0
votes
1answer
23 views

Set date with milliseconds from epoch

How do I set the date using milliseconds and or seconds from epoch? date -s 127846398127?
1
vote
1answer
47 views

linux redhat + change time from UTC to GMT+X

how to change the time from UTC to GMT+2 my current date is UTC as the following 20:23:48 root@linux-test01:~ # date Sat Apr 16 20:23:52 UTC 2016 and I want to change it from UTC to GMT+2
-1
votes
2answers
61 views

How to convert a string into a date in a given format

Need a string in '9-2-1832' format in a '1832-09-02' format. Must be able to fill a 'date' type field in mysql.
0
votes
1answer
32 views

Change last edited date [duplicate]

How can I change the last edited date of a file? There doesn't seem to be anything like: chlastediteddate 12/7/12 file What command can do this? Is there a way to do this without changing what the ...
3
votes
3answers
70 views

Get lines between two timestamps from a file

I have this large file that I need to go through using date and time. Every line in this file has a date and time in it. I need to search through the lines and get the lines that lie between two ...
1
vote
1answer
47 views

Set ls -l time format

I would like for all my ls commands that display a date, such as ls -l, to print the date column in a format of my choosing. Currently, I manually set this every time with --time-style. Is there any ...
1
vote
3answers
113 views

How to list all weekends for the next 6 months?

$ SAT=$(date -dsaturday +%Y-%m-%d) $ SUN=$(date -dsunday +%Y-%m-%d) $ $ echo $SAT 2016-04-09 $ echo $SUN 2016-04-10 $ I know how can I list the next dates for Saturday and Sunday. How can I list ...
0
votes
0answers
11 views

File manager: show “create date” [duplicate]

I'm using Linux Mint 17 Mate with Caja file manager. I find it very useful to know the date a file was created - this doesn't seem to be an option in CAja, or with Linux as far as I can tell so far - ...
2
votes
2answers
104 views

Get previous month regardless of days

In Linux, I can get last month by using date -d "last month" '+%Y%m' or date -d "1 month ago" '+%Y%m' But say, today is 31st of March, if I run the command at top, it shows 201603, but I want ...
3
votes
1answer
29 views

How to increment a day in a date that is stored in a variable

I am on OSX and have a date variable stored in $d which is formatted like %Y_%m_%d. So echo $d would give something like 2016_03_29. I want to increment the day by 1 so it becomes 2016_03_30. From ...
0
votes
1answer
31 views

How to implement config file expiration time?

I have a Debian server which runs a service using multiple config files (in a similar way to apache2) which I need to add an expiration date to. The config file that has an expiration date starts with ...
4
votes
1answer
164 views

Piping into moreutils' ts with nanosecond precision?

On this system: $ cat /etc/issue Ubuntu 14.04.4 LTS \n \l $ uname -a Linux mypc 3.19.0-56-generic #62~14.04.1-Ubuntu SMP Fri Mar 11 11:03:33 UTC 2016 i686 i686 i686 GNU/Linux $ apt-show-versions -r ...
4
votes
2answers
139 views

Failure of ntpdate if the system is set to a date beyond 2038

The correct current date is .Fri Mar 25 12:11:07 CST 2016. When I change the date to "2018/01/01", ntpdate works properly. When I change the date to "2099/01/01", ntpdate does not work properly. Ok:...
1
vote
1answer
26 views

Actively monitor the modified date of all files in a directory

Is there a way to actively monitor the modified dates of all files or directories in a current directory? I am using the BASH shell. By actively I mean run a command once and then be able to monitor ...
4
votes
3answers
116 views

UTC vs. localtime has an offset of about 25 seconds

I have compared this in different systems, but only get this behavior in an embedded system running Arago linux. I use the date command from BusyBox v.1.13.2 I executed this two commands "...
0
votes
0answers
26 views

How to change the date format in the LXDM login/greeting screen (LXDE)

I found a number of resources to change the system (Archlinux 2016-03-01) date format, amongst others one to create a new format from an existing locale file. I then modifed /etc/environment and ...
0
votes
2answers
61 views

Number of Seconds since epoch in solaris 10

I am trying to get the number of seconds since the epoch in both Solaris 10 and Solaris 11. On Solaris 11, "date +%s" is giving me the output (from bash), but the same is failing on Solaris 10. What ...
0
votes
1answer
57 views

Append row count and date to filename

Is there a way to append both a row count and a date to a filename? I have a file I am creating in SAP and upon output I would like to run a script to change the filename per my client's ...
1
vote
1answer
32 views

Make a directory named with date

I want to make a directory with the name being the day. I have this variable: [Desktop]: $dia 21/02/16 created this way: dia=$'date +%d/%m/%y' I'm trying to make a new directory this way: mkdir ...
9
votes
1answer
286 views

Why are these 2 date commands giving different results?

$ date -d "Apr 1 2016 - 1 month" +%B gives me "March", which is great - the month that comes before April is March. If I do this however: $ date -d "$(date -d "Apr 1 2016") - 1 month" +%B it ...
2
votes
2answers
72 views

Reformat date to unix time stamp in csv table

I have a .csv file containing the date and time in the format 01/20/2016 23:53:01 in the first column. My columns are separated by semicolons, i.e. 01/21/2016 03:03:01;18616;0;1 01/21/2016 03:13:01;...
2
votes
4answers
186 views

How can I get relative date based on relative date by linux date command?

Can I get "last monday based on 10 minutes ago" by linux date command ? For example current time: 2016-02-09 00:05:00 expected result: 2016-02-01 00:00:00
0
votes
1answer
88 views

add 10 days for UNIX timestamps output

I've file contain many of epoch / UNIX timestamps need to add for example +10 days for output date so then I will get new date and I've create bash script with date command but seems doesn't work ...
3
votes
3answers
375 views

How to sleep until a given date & time?

I want to write a shell where given a date (day-hour-min) e.g. 10:00 AM Sun 2:30 PM Mon ... It sleeps until that exact date & time. I thought one way of doing it is, I could get the current ...
2
votes
2answers
53 views

Renaming a file the moment it appears in a folder

Here's the context : on a samba server, I have some folders (that we'll call A,B,C,D ) which are supposed to receive files from a network scanner. The scanner renders a PDF file named like this : ...
3
votes
1answer
86 views

How can I output month name in a given timezone

I would like to have the output of date +"%B, %d %Y" in my local timezone but considering another timezone for the names (month name in this case). In my system the date +"%B" outputs (please note ...
0
votes
1answer
50 views

How to move (image) files to other directories based on files' dates

I have a directory (currdir) with 24000 images on a centos/cpanel server. I want to split this directory by moving images from this directory into other directories (or sub-directories inside currdir) ...
0
votes
2answers
27 views

search the most latest's file name

I am writing a bash script to look for a file which's file name is most recently and file name like: ... Wed_Dec_30_16:47:41_PHT_2015.zip Wed_Dec_30_16:00:41_PHT_2015.zip Wed_Dec_30_16:00:41_PHT_2015....