Author: johayek
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worrying warnings issued by rsync
Today when I rsync-ed my Mac’s disk to my Synology NAS-s, I found a couple of lines like this one: WARNING: abc.csv failed verification — update discarded (will try again). file has vanished: “def.csv” IO error encountered — skipping file deletion Of course this worries me. I stopped the script, that starts the rsync-s. I ran…
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Ruby: why choose rbenv over RVM?
<!– www.bibleserver.com | 524: A timeout occurred body{margin:0;padding:0} <!–[if lte IE 9]>/cdn-cgi/scripts/jquery.min.js<![endif]–> /cdn-cgi/scripts/zepto.min.js<!– /cdn-cgi/scripts/cf.common.js Error 524 Ray ID: 3a8c5196eb1d274a • 2017-10-05 00:40:12 UTC A timeout occurred You Browser Working Frankfurt Cloudflare Working www.bibleserver.com Host Error What happened? The origin web server timed out responding to this request. What can I do? If you’re a visitor…
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Perl: plenv vs perlbrew
https://github.com/tokuhirom/plenv – plenv – perl binary manager http://blogs.perl.org/users/brian_d_foy/2015/04/i-broke-plenv-and-cpanm-and-the-systems-they-run-on.html – this is where I found plenv mentioned first
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brian’s Guide to Solving Any Perl Problem (from “Mastering Perl”)
<!– www.bibleserver.com | 522: Connection timed out body{margin:0;padding:0} <!–[if lte IE 9]>/cdn-cgi/scripts/jquery.min.js<![endif]–> /cdn-cgi/scripts/zepto.min.js<!– /cdn-cgi/scripts/cf.common.js Error 522 Ray ID: 3a8c55812bcf267e • 2017-10-05 00:41:43 UTC Connection timed out You Browser Working Frankfurt Cloudflare Working www.bibleserver.com Host Error What happened? The initial connection between Cloudflare’s network and the origin web server timed out. As a result, the web…
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Perl: “while (1)” vs “for (;;)” – is there a speed difference? – the Perl syntax tree
http://stackoverflow.com/questions/885908/while-1-vs-for-is-there-a-speed-difference https://metacpan.org/pod/B::Concise – walk Perl syntax tree, printing concise info about ops I didn’t find the speed discussion too interesting, but I do find the Perl syntax tree introduction interesting.
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Tim Maher’s book: Minimal Perl for UNIX and Linux People
https://www.manning.com/books/minimal-perl https://www.amazon.de/dp/1932394508
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O’Reilly Media book: “Data Science at the Command Line” – installing the tools …
http://shop.oreilly.com/product/0636920032823.do excercising the tools within the Vagrant VM is fun … and certainly supplying the VM is a good and rather low-trouble start for the studies … but installing the tools in your real-life environment is the “challenge” … Appendix A lists the tools and their home pages http://csvkit.readthedocs.org – I just installed the csvkit,…
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watching “Hatufim” on arte – the scene with all the dogs was shocking
http://www.imdb.com/title/tt1676462 https://en.wikipedia.org/wiki/Prisoners_of_War_(TV_series) https://de.wikipedia.org/wiki/Hatufim – In der Hand des Feindes
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docopt — command-line interface description language
http://docopt.org https://github.com/docopt for Python etc
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systemd journalctl is buggy, isn’t it?! config: x86_64-opensuse-13.2
http://www.b.shuttle.de/hayek/mediawiki/w/index.php?title=Main_Page#systemd_and_the_journal my configuration: x86_64-opensuse-13.2 # this is the code suggested by Lennart Poettering, # but it does not work for me # (complains improperly about $XDG_RUNTIME_DIR) : $ journalctl –since=yesterday -p err # but this works: $ journalctl -b -p err # and this, too: $ journalctl –since=yesterday