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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘*nix-tools’ Category

rsync z-lib compression segmentation fault? WTF!

Posted by jpluimers on 2017/07/27

Not sure why without the -z compression switch this succeeds:

# rsync -avloz /var/lib/named/master/ /etc/named/master/
sending incremental file list
Segmentation fault (core dumped)
# rsync -avlo /var/lib/named/master/ /etc/named/master/
sending incremental file list

sent 10,495 bytes  received 74 bytes  21,138.00 bytes/sec
total size is 132,231  speedup is 12.51
# rsync -avloz /var/lib/named/master/ /etc/named/master/
sending incremental file list

sent 1,547 bytes  received 13 bytes  3,120.00 bytes/sec
total size is 132,231  speedup is 84.76


via: [WayBackrsync(1) – Linux man page

Posted in *nix, *nix-tools, Power User, rsync | Leave a Comment »

The strange case of some applications not being able to copy/paste on the Mac OS X clipboard

Posted by jpluimers on 2017/07/19

I’ve not tracked down the cause yet, but these seem to be related:

  1. The Mac OS X build of Atom IO
  2. WinBox v 3.4 WineBottle version from Winbox for Mac in an embedded Wine environment –
  3. pbcopy / pbpaste that allow command-line copy/pasting
  4. none of these being able to copy/paste any more and return error level 1 like terminal – pbcopy exits code 1, no error message – Ask Different but not even running tmux or screen which means this solution does not apply: ChrisJohnsen/tmux-MacOSX-pasteboard: Notes and workarounds for accessing the Mac OS X pasteboard in tmux sessions.
  5. I didn’t have Mouse Keys turned on
  6. Other applications (Chrome, FireFox, TextEdit, Finder, etc) still being able to copy/paste between each other

I’ve “fixed” 4. by doing this as recommended at osx – Copy and Cut sometimes don’t work – Ask Different:

launchctl list | grep

If the pboard daemon is running, then stop and start it. If it’s not running, start it:

launchctl stop
launchctl start

Now 4. works again if I restart each application, 6. still works, but these applications still cannot copy/paste to 1. 2. and 3.

What does work is a full reboot, but that takes a while (especially Chrome re-loading lots of Windows: I need to get more organised here).

It might be that I need to restart each application in 6.



Posted in Apple, Atom, iMac, Internet, Mac, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MikroTik, OS X, OS X El Capitan, OS X Maverick, OSX Yosemite, Power User, Routers, Text Editors, tmux | 4 Comments »

Happy #NoEmailDay – The case of the 500-mile email

Posted by jpluimers on 2017/07/07

Good reading on #NoEmailDay 2017: The case of the 500-mile email [WayBack] on how a sysadmin in the mid 1990s found the cause of not being able to send email further than roughly 500 miles.

The exact mile unit doesn’t matter as it was all approximation. Read the FAQ on the 500-mile email [WayBack]



PS: some sendmail tricks from

Read the rest of this entry »

Posted in *nix, *nix-tools, Fun, Power User, sendmail | Leave a Comment »

Learn How to Use ‘fuser’ Command with Examples in Linux

Posted by jpluimers on 2017/07/03

fuser is a simple yet powerful command line utility intended to locate processes based on the files, directories or socket a particular process is accessing.

Source: Learn How to Use ‘fuser’ Command with Examples in Linux [WayBack]

via: Learn How to Use ‘fuser’ Command with Examples in #Linux – Joe C. Hecht – Google+ [WayBack]

Posted in *nix, *nix-tools, Power User | Leave a Comment »

Stack Overflow: Helping One Million Developers Exit Vim – Stack Overflow Blog

Posted by jpluimers on 2017/05/24

Apparently, this is not just a joke, but a real problem:

This morning, a popular Stack Overflow question hit a major milestone:

There is an in depth analysis at [WayBackStack Overflow: Helping One Million Developers Exit Vim – Stack Overflow Blog

Via: [WayBackFabian S. Biehn – Google+


Read the rest of this entry »

Posted in *nix, *nix-tools, Pingback, Power User, Stackoverflow | Leave a Comment »

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