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Archive for the ‘OS X Lion’ Category

How-To: Automatically change your Mac’s display resolution when running specific apps [Video] – via: 9to5Mac

Posted by jpluimers on 2017/08/11

Yet another reason I love SwitchResX: : How-To: Automatically change your Mac’s display resolution when running specific apps [Video] | 9to5Mac

A few years ago, SwitchResX helped me switch my Mac machine to 1360×768 and 1888×1062 « The Wiert Corner – irregular stream of stuff

–jeroen

Posted in Apple, iMac, Mac, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X, OS X El Capitan, OS X Leopard, OS X Lion, OS X Maverick, OS X Mountain Lion, OS X Snow Leopard, OSX Yosemite | Leave a Comment »

OS X – the versions and their names – as I always forget them

Posted by jpluimers on 2017/04/03

I always forget which OS X versions there are and which names they use.

So via: OS X – Wikipedia, the free encyclopedia, I made this list where the first item points to the table in the above article and each subsequent item to the individual article on the version. I tried to find EOL dates, but that’s hard despite the overview at Apple security updates – Apple Support:

None of this would be noteworthy if Apple, like Microsoft and a host of other major software vendors, clearly spelled out its support policies. But Apple doesn’t, leaving users to guess about when their operating systems will fall off support. | Computerworld

–jeroen

PS: EOL dates are as of 20160403.

Posted in Apple, OS X, OS X El Capitan, OS X Leopard, OS X Lion, OS X Maverick, OS X Mountain Lion, OS X Snow Leopard, OS X Tiger, OSX Yosemite, Power User | 1 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, OS X, OS X El Capitan, OS X Lion, OS X Maverick, OS X Mountain Lion, OS X Snow Leopard, OSX Yosemite, Power User | Leave a 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, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X, OS X El Capitan, OS X Leopard, OS X Lion, OS X Maverick, OS X Mountain Lion, OS X Snow Leopard, OS X Tiger, OSX Yosemite, Power User, Scripting, Software Development | Leave a Comment »

whatismylocalip alias (actually more like whataremylocalips) and some sed links

Posted by jpluimers on 2017/01/10

Getting the local IP (actually IPs, but most hosts only have a single IP):

# OS X:
alias whatismylocalip='ifconfig | sed -En '\''s/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p'\'''
# Linux:
alias whatismylocalip='ip a | sed -En '\''s/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p'\'''

I got them via bash – How to I get the primary IP address of the local machine on Linux and OS X? – Stack Overflow

Mac OS X and BSD have ifconfig, but most Linux distributions don’t use ifconfig any more in favour of iproute2, so you use ip a (which is shorthand for ip address show) there.

Their output is similar enough for the sed to work, though. Which surprised be because I didn’t know about the -E option (it lacks in the manual Linux page but it is in the Mac OS X one) which enables POSIX extended regular expressions. In Linux this is documented as -r, but -E also works.

I learned this through the Sed – An Introduction and Tutorial which compares the various versions of sed which also explains about the -n doing no printing.

–jeroen

Posted in *nix, *nix-tools, Apple, bash, bash, Development, Linux, Mac, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, openSuSE, OS X, OS X Leopard, OS X Lion, OS X Maverick, OS X Mountain Lion, OS X Snow Leopard, OS X Tiger, OSX Yosemite, Power User, Scripting, Software Development, SuSE Linux, Tumbleweed | Leave a Comment »

 
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