You now have a good understanding of how to use the Date command on Linux. If you are interested in more date/time configuration options for Linux, see Set or change time zone/date/time on Ubuntu. Another common use of the date command is in shell scripts. In the following we assign the date output of the variable date_now: The timestamp of the date file is changed by touch command. This happened a few seconds after the above date order was issued. The following table lists several formatting options for date commands. The following works on Apple macOS/OS X, FreeBSD, and *BSD Version of the Date command: To display the 12-hour time of the locale, type: $ date +”%r” Example output: Finally, use the -r date command option to display the most recently modified timestamp of a file as shown below. This example displays the time the date file was last modified as 20:25:57. It`s somewhere between 20:25:48 and 20:26:12 (when we run the touch command above to change the timestamp). $for i dans {0..3}; do date +%Y%m%d –date „20141229 $i day”; Made 20141229 20141230 20141231 20150101 `–utc` is not in the default date, it is part of GNU date (or gdate on many systems) The –date option can also display future data.

As with past dates, you can enter strings to print upcoming dates: I want to get the following: ISO8601 UTC timestamp | Date –utc +%FT%TZ | 2013-05-17T01:16:09Z To format the output of the date command, you can use control characters preceded by a + sign. Style controls begin with the % symbol and are replaced with their current values. date –date=`yesterday` date –date=`yesterday` +%Y-%m-%d This result *was* a big win for the time he would have *saved me* and the effort he saved compared to thinking with „man date”. That said, it saves me time until I get to the train crash of this comment thread. Now I`ve lost all the productivity I`ve gained because I couldn`t stop reading these reviews. It`s funny, I wasn`t offended by the comment on the hot topic because my brain automatically p.c.-ed did it for you. I just thought he was saying, „Now all Mac fans can stop harassing me,” which I read like a hack knife, but an elegant dig into the unconsciousness of Mac users. I advise against using the word for some reasons, but I also find this humorously eccentric idea of a hero useful in a tense corporate workplace who follows your advice to post in your team`s trash as a reference, without realizing it`s there. How to compress the time to 07:35:15AM format using the date of the shell script is used to display the system date and time. The date command is also used to set the date and time of the system.

By default, the date command displays the date in the time zone where the Unix/Linux operating system is configured. You must be the root to change the date and time. Read on to learn how to use the date command on Linux. Wonderful post and answers. Thank you all for contributing to the (mainly) and humorous, very helpful comments (thanks zxq9!) Just what I needed for a quick little script to insert an iso8601 timestamp into some text files. I found the Mac comments really a bit weird and a bit humorous that some people on a forum like this just seem to be looking for, focusing on them and being consumed by perceived hate. surprising and strange. ..

maybe I should get more out of it to learn more about these strange people, . You can use the –date command to display the specified date string in the format of a date. This command does not affect the actual date and time values of the system and returns only the requested date. For example: Currently, your excellent spreadsheet is one of the best Google results for „bash create timestamp”. Would you customize the first column to be consistent with the output for the number of years and add 2-year formats? YYYYMMDD_hhmmss | Date +%Y%m%d_%H%M%S | $(Date +%Y%m%d_%H%M%S) YYMMDD_hhmmss | Date +%y%m%d_%H%M%S | $(Date +%y%m%d_%H%M%S) Either way, it`s easy to forget about time zones that live in a country where there is only one! I updated the post with your examples as they are indeed useful. We can change the timestamp of a date file using the touch command. To view the time and date of the current system, type the date command: Use the –date option to view the dates passed on Linux. The date order accepts values such as „tomorrow”, „Friday”, „last Friday”, „next Friday”, „next week” and others. Therefore, use the following strings to print past dates :: You can use the date command to create file names that contain the current time and date. The following entry creates a backup MySQL file in the format of the current date: To enable 4-digit year display: $date +”%m-%d-%Y” Simply display the date in mm/dd/yy format: $date + „%D” The Linux date command displays and sets the system date and time.

This command also allows users to print the time in different formats and calculate future and past data. Please note that the current date and time are not used. Instead, it uses the date and time value that you pass as a string. You can also use the Date command to get a future date with relative values. Hello! This site is really informative, but I have a question. For a specific date entered by the user, how do I pass it to the date function for formatting and display? This is very useful, how can I give the abbreviated month as date +%b will give „Oct”, but I need the output as „OCT” – All capital letters. The -d option allows users to work on a specific date. For example, we can enter the following command: From time to time, I am asked how to use the date command to generate a timestamp.

Here`s a silly script you can post as a reference in your team`s trash / if you`re interrupted due to timestamp questions or if you have an aversion to typing phrases like „man date” (with or without spaces). Here we use the Cat command to add data to a file, and then print it using the Date: command in Linux operating systems, this can be done with -d, but on Sun Solaris the -d option is not available. A solution? —BEGIN— for sorting in $ALLDATES; do date +%s -d „$sorttime” >> $$ done Convert locale to another time zone: TZ=KST date Mo Jan 5 12:57:43 KST 2015 #!/usr/bin/bash # Set the current local time in this format: `18/03/2010 17:52:18′ CURR_DATE=`date +%m/%d/%Y” „%H:%M:%S`#Set start time (current time – 12 hours) <- That`s where I`m stuck!!! START_DATE=`date +%m/%d/%Y` "%T You can set your system`s date and time using the -s or -set option, as shown below. The following examples use a string used only for the date of entry and display the output in date format. If you do not specify a time, 00:00:00 is used for the time. For three digits of the nanosecond output, you can insert a length field before the "N": Date –utc +%FT%T.%3NZ This is what I add to the list. DATE3_1 give me the current date minus 3 years and 1 day, but I need to get this date range with a specific parameter, not the sysdate. .