VirtualTam's bookmarks

1. howdoi: instant coding answers via the command line 2019-09-24

   tags: command-line, help, linux, programming, programming/python, search-engine, web

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   1$ pip install howdoi
   2$ howdoi format date bash
   3> DATE=`date +%Y-%m-%d`
   

2. ddate(1) - Linux man page 2019-09-23

   tags: calendar, date, easter-egg, linux, wtf

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   • https://en.wikipedia.org/wiki/Discordianism
   • https://en.wikipedia.org/wiki/Discordian_calendar
   • https://www.reddit.com/r/linux/comments/1wnaw7/accidentally_typed_ddate_instead_of_date_got/
3. knuth-elevator: A Go implementation of the elevator simulator described by Donald E. Knuth. 2019-09-16

   tags: algorithm, elevator, knuth, programming, programming/go

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   > One of the references on Wikipedia’s Elevator Paradox page is a paper written by Donald E. Knuth dated many years prior to his simulator. A side-effect of that research experience may have been a lasting interest in the intricate details of elevator systems.

   • https://en.wikipedia.org/wiki/The_Art_of_Computer_Programming
   • https://en.wikipedia.org/wiki/Discrete-event_simulation
4. A brief history of the UUID · Segment Blog 2019-05-30

   tags: address, cryptography/hash, cryptography/random, data, date, id, network, programming/go, telephone, unique

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5. Timing is Everything. Writing the Clock Panel Plugin for Grafana 3.0 | Grafana Labs Blog 2019-02-19

   tags: clock, dashboard, date, observability, observability/grafana

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6. Falsehoods programmers believe about time: @noahsussman: Infinite Undo 2018-10-22

   tags: clock, date, programming, time, timezone

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   • https://news.ycombinator.com/item?id=4128208

   • https://www.reddit.com/r/programming/comments/v8s0y/falsehoods_programmers_believe_about_time/

   • https://www.metafilter.com/117073/Falsehoods-Programmers-Believe

   • https://infiniteundo.com/post/25509354022/more-falsehoods-programmers-believe-about-time

   • https://www.reddit.com/r/programming/comments/zckb2/more_falsehoods_programmers_believe_about_time/

7. Moment.js | Home 2018-10-16

   tags: date, programming/javascript, time, timezone

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8. timezoneoffset - In Go, how can I extract the value of my current local time offset? - Stack Overflow 2018-09-23

   tags: date, programming/go, timezone, utc

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   • https://golang.org/pkg/time/#Time.Location
   • https://golang.org/pkg/time/#ParseInLocation
   • https://stackoverflow.com/questions/25318154/convert-utc-to-local-time-go
   • https://bluxte.net/musings/2018/03/22/local-date-time-calculations-in-go/
9. time - The Go Programming Language 2018-09-23

   tags: date, programming/go, text/formatting, time

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   • https://golang.org/pkg/time/#example_Parse
   • https://stackoverflow.com/questions/6589636/date-parsing-in-go
   • https://stackoverflow.com/questions/40939261/golang-parse-strange-date-format
   • https://gobyexample.com/time-formatting-parsing
   • https://medium.com/@Martynas/formatting-date-and-time-in-golang-5816112bf098
10. vagrant-vbguest: A Vagrant plugin to keep your VirtualBox Guest Additions up to date 2018-05-24

    tags: driver, linux, linux/kernel, virtualization/vagrant, virtualization/virtualbox

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11. Elapsed filter plugin | Logstash Reference 2018-03-26

    tags: date, observability/elastic, observability/elastic/logstash, observability/logging, time

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    • https://github.com/logstash-plugins/logstash-filter-elapsed
    • https://stackoverflow.com/questions/29020545/logstash-elapsed-filter
    • https://stackoverflow.com/questions/21902423/how-to-create-query-which-can-calculate-time-difference
12. pavdmyt/git-ctm: ⏳ git Commit Time Machine ⌛ 2018-02-09

    tags: commit, date, source-code-management, source-code-management/git

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13. date - Why does man print "gimme gimme gimme" at 00:30? - Unix & Linux Stack Exchange 2017-11-21

    tags: easter-egg, linux, man

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14. Python: get current datetime as a Unix epoch 2017-01-04

    tags: date, epoch, programming/python, snippet, unix, utc

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    1import calendar
    2import time
    3
    4calendar.timegm(time.gmtime())
    

15. Postfix / Dovecot / ClamAV / Spamassassin 2016-12-12

    tags: antivirus, bayesian, email, email/dovecot, email/milter, email/sieve, email/spam, filter, linux, linux/centos, linux/debian, linux/red-hat, roundcube, sysadmin

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    A whole buncha' links with contradictory information on how to properly set up a mail server ;-)

    Disclaimer - My primary goal is to add proper Spamassassin (SA) filtering to an existing Postfix / Dovecot / roundcube installation, i.e.:

    • use SA as a milter (mail filter) to attribute a spam score to incoming mail
    • keep SA up-to-date
    • train SA with spam/ham from the users' virtual mailboxes
    • train SA according to user decisions (actual user or trained mail client with automatic/trained spam detection)

    Here we go!

    Most useful links; I stumbled upon them as soon as I knew what to look for:

    • https://workaround.org/ispmail/jessie/spamassassin
    • https://lelutin.ca/posts/installing_postfix_-_clamav_-_spamassassin_-_dovecot_-_postfixadmin_on_debian_squeeze/

    Official:

    • https://spamassassin.apache.org
    • https://spamassassin.apache.org/gtube/
    • https://wiki.apache.org/spamassassin/FrequentlyAskedQuestions

    Debian:

    • https://wiki.debian.org/DebianSpamAssassin
    • http://www.stefan-seelmann.de/wiki/mailserver-postfix-dovecot (wheezy)
    • https://www.christianroessler.net/tech/2015/spamassassin-dovecot-postfix.html
    • https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassassin

    CentOS:

    • https://www.rosehosting.com/blog/how-to-install-and-integrate-spamassassin-with-postfix-on-a-centos-6-vps/
    • https://www.rosehosting.com/blog/how-to-set-up-server-side-email-filtering-with-dovecot-sieve-and-roundcube-on-a-centos-6-vps/
    • http://shisaa.jp/postset/mailserver-1.html - a bit outdated but plenty of useful information regarding how components interact with each other
    • http://wiki2.dovecot.org/HowTo

    RHEL:

    • https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/ch-Mail_Servers.html
    • https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/s1-email-mta.html
    • https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/s1-email-mda.html
16. 3 Screens | Date and Time Manipulation | Web & Mobile Application Development 2016-11-07

    tags: date, development, time, timestamp, utc

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17. python - Check if requirements are up to date - Stack Overflow 2016-08-05

    tags: dependency, development, programming/python, programming/python/pip, requirement

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    1# from a virtualenv
    2$ pip list --outdated
    

18. Arnold's Laws of Documentation 2016-03-02

    tags: documentation, law, software, trope

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    (1) If it should exist, it doesn't. (2) If it does exist, it's out of date. (3) Only documentation for useless programs transcends the first two laws.

19. Welcome to Mastering Django - Mastering Django 2015-11-23

    tags: book, framework, framework/django, programming/python, tutorial, web

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    Up-to-date fork of the DJango Book, with additional content \o/

    • http://www.djangobook.com/en/2.0/index.html
    • https://github.com/jacobian-archive/djangobook.com
    • https://github.com/big-nige/djangobook-Updated-to-1.8
20. Delorean: Time Travel Made Easy — delorean 0.4.2 documentation 2014-09-07

    tags: date, development, manipulation, programming/python, time, zone

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