Questions tagged [timestamps]
timestamp is used for questions that are about data specifying seconds since the epoch (19700101T00:00:00) or possible some other standard, and also for (date) and time information in filenames.
586 questions
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Set timestamp from exif for png files
Basically I am looking for the PNG-equivalent of jhead -ft *.jpg (which sets the timestamp of the file based on the exif time for JPG files).
So I have png files and want to set their timestamp to the ...
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How to programmatically deduplicate files into hard links while maintaining the time stamps of the containing directories?
Continuing https://unix.stackexchange.com/a/22822, how to deduplicate files, given as a list, into hardlinks, while maintaining the timestamps of their directories? Unfortunately, hardlinks changes ...
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File has been changed, but its "date modified" is the same. How is that possible?
Here is a test file test.applescript:
display dialog "foo" buttons {"OK"} cancel button 1 default button 1
At 4:05 PM I compiled it to test.app:
osacompile -o test.app test....
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How to show seconds of last modified date when using sftp command?
When I use WinSCP to access my SFTP server, it shows me the last modified (changed) date including seconds. If I use sftp on Linux and run ls -l, it only shows the hours and minutes, but no seconds. ...
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Is there a reason why I can't use find to scan modified files for viruses and malware?
I need to scan Linux systems for viruses/malware, on the entire file system. There are few options to consider.
One is normally what users do: Use antivirus to scan system once a day.
The second ...
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Timestamp to each line of output (after finish command, how make view, when i input next command?)
In Terminal, i have see, when finish command, i view, when i input next command
I use this solution
https://unix.stackexchange.com/a/622928/675422
exec &> >( ts '%Y-%m-%d %H%M.%.S ' ) # ...
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How to set keyboard shortcut to insert a timestamp (time & date) in KWrite?
KWrite is included as the default text editor in several popular Linux distros (such as Fedora KDE).
Inserting a timestamp is a basic feature of text editors.
How can one set a keyboard shortcut to ...
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2
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Dmesg showing incidents in the future
While debugging Wifi issues I came across this anomaly:
$ sudo dmesg -e
[Jul 1 14:28] wlxd85d4c93a47f: deauthenticating from 1c:57:3e:96:c3:a3 by local choice (Reason: 3=DEAUTH_LEAVING)
[ +1.457910] ...
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Can't set time to wee hours of January 1, 1970
This is related, but I believe not a duplicate, of "Why cannot I set the date of my GNU/Linux machines to the Epoch?".
I've discovered that one of my Linux kernels rejects attempts to set ...
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Explain to a beginner the meaning of -mtime in simple human language
Of course, I read the meager lines from the manual. I'm still interested in the specifics.
For example, the stat / some_files command
print this:
access 2024 (now)
modified 2022
changeded 2023
...
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How to compare two directories recursively, and for each pair of files with the same name, location, and contents, say which file is older?
In a Linux shell, how to compare two directories recursively, and for each pair of files (including symlinks and directories) with the same location (including the name) in the two directories and the ...
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Why is filesystem time always some msecs behind system time in Linux?
In Linux, it seems that filesystem time is always some milliseconds behind system time, leading to inconsistencies if you want to check if a file has been modified before or after a given time in very ...
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Add hours to the date and time
I have a requirement to add offset hours to the datetime value.
Get the previous date (e.g. 2023-10-19 00:00:00.000000)
previous_date=`TZ=TZ+24 date '+%Y-%m-%d 00:00:00.000000'`
Calculate the ...
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SO_TIMESTAMPING: Which timestamp is used if we read multiple packets at once?
Given Linux is used and packet timestamping is enabled with SO_TIMESTAMPING for a TCP socket and we read now some data, what timestamp will be reported if the byte-stream which we read was merged out ...
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How to call script with timestamps relative to now, on Solaris?
We have List Error shell script, but I run it manually daily. I want to run the script via crontab automatically.
My script :
#!/bin/sh
ent programe -a$1 -b$2 -c$3 -d$4 -tTE -oListErrorTE.txt
grep &...
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Why does this use of `cp -a` not preserve creation time?
I copy some directories with -a in order to preserve=all which I understood would include creation times:
cp -a ./* /mnt/destination/
When inspecting the resulting directories in the destination they ...
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The 01:00 in 1 January 1970 at 01:00
I will not ask why a timestamp is 1 January 1970 at 00:00 but in several cases in my computer they are 1 January 1970 at 01:00, how did the 01:00 coincidentally get set with a number of apps?
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Unable to maintain createTime with rsync (but cp -p works)
I'm running into a strange issue with timestamps when trying to copy/backup files from my Mac to a shared drive on TrueNas.
My drive is defined in TrueNAS as a Home Share and mounted in MacOS via the ...
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Getting year of Postixct format
"Thu Apr 21 11:15:00.375 2022" how to get the year of this expression?
Followings are tested.
1- as.POSIXct(strptime("Thu Apr 21 11:15:00.375 2022", format='%c'),origin='1970-01-01'...
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Set explicit time with date
When I tried to set time with
$(date +%s -d "2022-04-10 12:12:12")
I get the time
2022-04-10 19:12:12
How can I set the time explicit?
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Converting epoch time format saved in a text file to human friendly format
I have a file name simcloud-target.txt where dates are saved in epoch time format i want to convert all the dates to human friendly format and print it as a list (same as the out put shown below so ...
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Convert Xorg log timestamps to human readable timestamps
I need to change the time stems of a whole Xorg/X11 log file (e.g. /var/log/Xorg.0.log) into human readable format. The default format is the time in seconds since boot, preferably yyyy-mm-dd + time. ...
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Use awk to change timestamp on column from the ISO 8601 format
I have an output like this:
echo "$i"
**@timestamp:** `2023-01-18T15:08:36.698Z`
I would like to output this in awk and make it look like this:
Wed 18 Jan 2023 06:50:38 PM EST
Here's what I ...
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Journald and Sources of Log Messages
I would like to know what process is meant to write Timestapms (and other parts of Log messages) in Syslog protocol.
In other words, is it Syslog that sets timestamp of log message (exact time of ...
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2
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Interpolate timestamps and replace empty fields in CSV files
I have CSV files with the following elements:
timestamp, data1, data2, data3, data4, data5
2015-03-16 00:00:00, 3, 3, 4, 2, 5
2015-03-16 00:10:00, 4, 7, 8, 9, 3
2015-03-16 00:20:...
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