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

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Archive for the ‘Mac OS X / OS X / MacOS’ Category

Mac OS X: restarting Tunnelblick when it isn’t responding any more

Posted by jpluimers on 2017/03/31

In addition to my post about Mac OS X: restarting Google Drive when it shows a spinning wheel, restarting a hanging Tunnelblick is even easier:

killall Tunnelblick
open -a Tunnelblick

–jeroen

Posted in Apple, bash, Development, iMac, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.9 Mavericks, Power User, Scripting, Software Development | Leave a Comment »

Mac OS X – serial communication programs

Posted by jpluimers on 2017/03/30

Some links that helped me getting FTDI USB serial communication to Raspberry Pi systems going:

–jeroen

Posted in Apple, Communications Development, Development, Hardware Development, Hardware Interfacing, iMac, Legacy Ports: COM, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X 10.10 Yosemite, OS X 10.9 Mavericks, Power User, Raspberry Pi, USB | Leave a Comment »

Mac OS X: restarting Google Drive when it shows a spinning wheel

Posted by jpluimers on 2017/03/29

Every now and then, Google Drive on Mac OS X gets confused and starts showing the spinning wheel when hovering over the menu bar icon similar to for instance DropBox does every once in a while.

This is how to terminate and restart Google Drive from the terminal (no need for su):

killall -v -SIGKILL Google\ Drive
open -a Google\ Drive

Alternatively you can start Google Drive using this:

/Applications/Google\ Drive.app/Contents/MacOS/Google\ Drive &

I found this executable through osx – Find all executable files within a folder in terminal – Ask Different

Note that this won’t kill Google Drive as it sends the TERM signal (SIGTERM):

killall -v Google\ Drive

–jeroen

Posted in Apple, bash, Development, Google, GoogleDrive, iMac, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User, Scripting, Software Development | 1 Comment »

ducks: How Do I Find The Largest Top 10 Files and Directories On a Linux / UNIX / BSD?

Posted by jpluimers on 2017/03/20

Explains how to find out top 10 files and directories under Unix / Linux using sort and du command in human-readable format.

Interesting, especially

alias 'ducks=du -cks * | sort -rn | head'

Source: How Do I Find The Largest Top 10 Files and Directories On a Linux / UNIX / BSD?

via: Joe C. Hecht and nixCraft.

–jeroen

Posted in *nix, *nix-tools, Apple, BSD, Linux, Mac, Mac OS X / OS X / MacOS, Power User | Leave a Comment »

Microsoft Remote Desktop 8 on OS X stores RDP configuration in com.microsoft.rdc.mac.plist and passwords in keychain

Posted by jpluimers on 2017/03/15

One day I write some scripts based on:

Some starting materials are at:

A thing I learned is that the Microsoft Remote Desktop 8 is basically a rebranded iTap RDP (it looks like Microsoft bought iTap RDP for Mac, as iTap RDP for Mac is now discontinued)

–jeroen

Posted in Apple, Development, Mac OS X / OS X / MacOS, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User, Remote Desktop Protocol/MSTSC/Terminal Services, Scripting, Software Development, Windows, XML, XML/XSD | Leave a Comment »

iMovie on a 2010 iMac was starting and running slow: 2 simple steps solved that

Posted by jpluimers on 2017/02/27

iMovie on a 2010 iMac was starting and running slow. During startup, it wasn’t using much memory, but during editing it did: less than 2 gigabyte out of 8 gigabyte free memory left.

The hard-disk was like 30% full, there wasn’t much in the cache, few processes were auto-starting and the recycle bin was almost empty.

So my first thought was adding more RAM (which is easy): duplicating it to 16 megabyte was easy and not expensive when you look at the Amazon prices for it.

After that it was faster, but not really fast: especially the loading was still slow (less slow than before, but still taking minutes).

Then I scanned for permission issues and there were quite a few as the machine had been getting updates since 2010. So I repaired the permissions using disk utility.

Now iMovie loaded much faster as well: in under a minute.

So out of 17 Ways to Speed Up Mac OS X Lion – ChrisWrites.com, only 2 steps were really needed so far.

–jeroen

Posted in Apple, iMac, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User | Leave a Comment »

Finder doesn’t work since Yosemite – Ask Different

Posted by jpluimers on 2017/02/20

Source: Finder doesn’t work since Yosemite – Ask Different [WayBack]:

This fix from Reddit worked perfectly for me!!

http://www.reddit.com/r/osx/comments/2jtikj/finder_not_responding_new_yosemite_install/ [WayBack]

You can most likely fix the issue by clearing out Finder’s saved state, caches, and/or settings.

Use Spotlight (the search icon in the far right of the menu bar) to find and open the “Terminal” application. Triple-click the following line in order to copy and paste it into Terminal’s window:

rm -fR ~/Library/Saved\ Application\ State/com.apple.finder.savedState ~/Library/Caches/com.apple.finder; killall Finder

If it still doesn’t work, try this one:

mv ~/Library/Preferences/com.apple.finder{,.backup}.plist; killall Finder

–jeroen

Read the rest of this entry »

Posted in Apple, iMac, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X 10.10 Yosemite, Power User | Leave a Comment »

Managing WIFI connections using the Mac OSX…

Posted by jpluimers on 2017/02/10

These links:

Made me add this to my ~/.bash_profile:

Read the rest of this entry »

Posted in Apple, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.6 Snow Leopard, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X 10.10 Yosemite, OS X 10.9 Mavericks, Power User | Leave a Comment »

Date format converter from Text or Unix/Mac/Filetime/Microsoft to virtually any readable form

Posted by jpluimers on 2017/02/09

Brilliant Date format converter from dates in Text (almost any format) or timestamp numbers in Unix, Mac, Filetime or Microsoft (which is the same as Delphi TDateTime) format to any of these formats:

Text Date:
Date in human-readable text
Wednesday, March 23, 2016 4:05:39pm
RFC 822:
RFC 822 formatted date
Wed, 23 Mar 2016 16:05:39 +0000
ISO 8601:
ISO 8601 formatted date
2016-03-23T16:05:39+00:00
UNIX Timestamp:
seconds since Jan 1 1970
1458749139
Mac Timestamp:
seconds since Jan 1 1904
3541593939
Microsoft Timestamp:
days since Dec 31 1899
42452.670590278
FILETIME:
100-nanoseconds since Jan 1 1601
131032227390000000
01D1851D:D7B58B80

Source: Date format converter

–jeroen

Posted in *nix, .NET, Apple, Delphi, Development, Mac, Mac OS X / OS X / MacOS, Power User, Software Development | 1 Comment »

Determining the current shell in *n*x variants including ESXi

Posted by jpluimers on 2017/02/08

On most systems, I use bash as shell, but not all systems have it, for instance the shell.xs4all.nl server uses tcsh and ESXi 4+ uses a very limited ash shell from busybox (ESX 4 had bash though).

There is this huge script that covers many shell and operating system versions (even DOS, Windows) and interpreters (python, ruby, php, etc) what shell is this which I got through Stéphane Chazelas‘s answer in linux – determine shell in script during runtime – Unix & Linux Stack Exchange

I wanted a shorter thing that works in current Linux, BSD, OS X and ESXi versions.

Some very short scripts are less reliable, for instance echo $SHELL looks nice, but isn’t always set.

Similar for echo $0 which will fail for instance if it shows as sh but in fact is a different shell in disguise.

This works for bash, tcsh and busybox sh, is a bit more precise than getting $0. It’s based on HOWTO: Detect bash from shell script – Stack Overflow:

lsof -p $$ | awk '(NR==2) {print $1}'

But on ESXi it shows this because lsof doesn’t take any parameter there and just dumps all information:

----------+---------------------+---------------------+--------+------------------

It’s because lsof on ESXi always shows this header where Cartel and World aren’t exactly well documented:

Cartel | World name | Type | fd | Description
----------+---------------------+---------------------+--------+------------------

Empirically for non VM related processes, it looks like the Cartel is the PID and World name the command.

On Linux and BSD based systems, the header looks like this, so command and PID are reversed in ESXi:

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME

This command then works on both ESXi, OS X, Linux and BSD assuming you can word search for the PID and noting that PID/command will be reversed on ESXi as compared to OSX/Linux/BSD:

lsof -p $$ | grep -w $$ | awk '(NR==2) {print $1,$2}'

–jeroen

Posted in Apple, bash, BSD, Development, iMac, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User, Scripting, Software Development | Leave a Comment »