MP4 to GIF with FFMpeg

 $ ffmpeg -i INPUT.mp4 -f gif OUTPUT.gif

Additional options

 -ss 60.0 : skip 60 seconds
 -t 5 : for 5 seconds
 -r 12 : framerate 12fps
 -y : replace existing file

Example

 $ ffmpeg -i INPUT.mp4 -y -f gif -r 24 -ss 63.0 -t 2.5 OUTPUT.gif

ISO to USB on Mac Mojave

1. List devices

   $ diskutil list
   /dev/disk0 (internal, physical):
      #:                       TYPE NAME                    SIZE       IDENTIFIER
      0:      GUID_partition_scheme                        *251.0 GB   disk0
      1:                        EFI EFI                     314.6 MB   disk0s1
      2:                 Apple_APFS Container disk1         250.7 GB   disk0s2
   
   /dev/disk1 (synthesized):
      #:                       TYPE NAME                    SIZE       IDENTIFIER
      0:      APFS Container Scheme -                      +250.7 GB   disk1
                                    Physical Store disk0s2
      1:                APFS Volume Macintosh HD - Data     77.5 GB    disk1s1
      2:                APFS Volume Preboot                 82.0 MB    disk1s2
      3:                APFS Volume Recovery                528.1 MB   disk1s3
      4:                APFS Volume VM                      1.1 GB     disk1s4
      5:                APFS Volume Macintosh HD            11.1 GB    disk1s5
   
   /dev/disk2 (external, physical):
      #:                       TYPE NAME                    SIZE       IDENTIFIER
      0:     FDisk_partition_scheme                        *124.2 GB   disk2
      1:             Windows_FAT_32 CCCOMA_X64F             124.2 GB   disk2s1
   

2. Unmount USB stick

   $ diskutil unmountDisk /dev/disk2
   Unmount of all volumes on disk2 was successful
   

3. $ sudo dd if=kali-linux-2020.1b-installer-amd64.iso of=/dev/disk2 bs=1m
   Password:
   2075+1 records in
   2075+1 records out
   2176778240 bytes transferred in 656.146374 secs (3317519 bytes/sec)
   

Export all PDF pages to JPG on mac

Run Automator and Choose [Quick Action] on [New Documents]

Run

Result

Add subtitle to an MP4/MOV with FFMPEG

Install unbound dns cache on Mac

Install unbound dns cache on Mac

Paper Size in millimeter

Broken attachment filename with Apple mail

With Apple mail, Korean attachment filename is broken.

Attachment filename is encoded to UTF-8

Run the following command within Terminal, then restart Apple mail.

$ defaults write com.apple.mail NSPreferredMailCharset "UTF-8"

Paul Graham's Quote

• You need three things to create a successful startup: to start with good people, to make something customers actually want, and to spend as little money as possible.

성공적인 스타트업 만드는 데 필요한 3가지: 좋은 사람들과 시작하기, 고객들이 실제로 원하는 건 만들기, 돈은 적게 쓰기

• A startup is like a mosquito. A bear can absorb a hit and a crab is armored against one, but a mosquito is designed for one thing : to score. No energy is wasted on defense. The defense of mosquitos, as a species, is that there are a lot of them, but this is little consolation to the individual mosquito.

스타트업은 모기와 같다. 곰은 충격을 흡수하고 게는 껍질이 있지만 모기는 한 가지를 위해 만들어졌다. 득점(성공?승리?)하기. 방어에 허비되는 에너지는 없다. 하나의 종으로서 모기의 방어는 수가 많다는 점이지만 개별 모기에게는 아무런 위로가 되지 않는다.

• Don't ignore your dreams; don't work too much; say what you think; cultivate friendships; be happy.

꿈을 무시하지 마라: 너무 많이 일하지 마라; 생각하는 걸 얘기해라; 우정을 쌓아라; 행복해라

• I'm not saying there's no such thing as genius. But if you're trying to choose between two theories and one gives you an excuse for being lazy, the other one is probably right.

천재성이라는 게 없다고 말하지는 않겠다. 그런데 두 가지 이론 중에서 선택하고자 할 때, 그 중 한가지가 당신이 게을러져도 괜찮다고 한다면, 아마도 다른 것이 맞다.

• The most important thing is not to let fundraising get you down. Startups live or die on morale. If you let the difficulty of raising money destroy your morale, it will become a self-fulfilling prophecy.

가장 중요한 것은 자금조달이 당신을 실망시키게 두지 마라. 스타트업은 사기에 죽고 산다. 만약 자금조달의 어려움이 의욕을 꺾는다면, 그것은 자기성취예언(다른 상황들도 악화시키게 됨)이 될 것이다.

Difference among tall tales, legends, myths, fairy tales and fables

TALL TALEs humorously exaggerate facts with plausible story lines.

LEGENDs embellish and glorify historical facts or fiction passed down through generations.

MYTHs explain natural phenomena with supernatural beings or creators based on religion.

FAIRY TALEs usually conflict between clearly separated good and evil with magic and imaginary creatures.

FABLEs teach a moral with talking animals.

Vivaldi: Concerto Grosso in D minor

Tell Governor Quinn to Help Stop Climate Change: Thank You, Tell-a-Friend - NRDC Action Center

Tell Governor Quinn to Help Stop Climate Change: Thank You, Tell-a-Friend - NRDC Action Center

Flying eagle point of view #1

[우루사(URSA)] 대한민국 아버지를 응원합니다! #전사의 몸편 Full Version

Silicon Valley Season 1: Trailer (HBO)

Canon in D (Classical guitar) by Johann Pachelbel

How to hide user accounts on Windows 7/Vista logon

I found user accounts on Windows logon after setting up the GIT service on my Windows box.
However, they are important to run GIT. So, I want to hide them.

1. Run [regedit]
2. Find the following key with [regedit]
   HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
3. Add a new key under [Winlogon]
1. Click right button on [Winlogon]
2. Click [New]
3. Click [Key]
4. Type [SpecialAccounts]
4. Add one more new key under [SpecialAccounts]
1. Click right button on [SpecialAccounts]
2. Click [New]
3. Click [Key]
4. Type [UserList]
5. Add [DWORD (32bit) Value]s
1. Click right button on right panel of [UserList]
2. Click [New]
3. Click [DWROD (32bit) Value]
4. Type user account that you want to hide
• Repeat this 4 steps as many as accounts that you want to hide
• Make sure it is 0(zero). If this value is 1, you can see the user account on logon

Failing Gracefully: What you Probably Didn’t Know About Successful Startups — Ms. Career Girl

Failing Gracefully: What you Probably Didn’t Know About Successful Startups — Ms. Career Girl

Chicago Zoological Society - Zoo Run Run for the Conservation Fund

Chicago Zoological Society - Zoo Run Run for the Conservation Fund

Coincident or not? - TEK9 Networks

Coincident or not? - TEK9 Networks

How to add SyntaxHighlighter to blog on Blogger.com

Visit SyntaxHighlighter homepage for more detailed information.

1. Enter the setup page of your blog and then click [Template] > [Edit HTML]
2. Copy the following code and paste it just above </head>

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<link href='http://alexgorbatchev.com/pub/sh/current/styles/shThemeEclipse.css' rel='stylesheet' type='text/css'/>

<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shCore.js' type='text/javascript'/>

<!--Support languages-->
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<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushXml.js' type='text/javascript'/>

<!--Activate SyntaxHighlighter-->
<script language='javascript'>
 SyntaxHighlighter.config.bloggerMode = true;
 SyntaxHighlighter.config.clipboardSwf = 'http://alexgorbatchev.com/pub/sh/current/scripts/clipboard.swf';
 SyntaxHighlighter.all();
</script>

3. Write your code between <pre class="brush:[TYPE]"> and </pre> tags in HTML mode.
   [TYPE] can be one of language that can be found at shBrush[TYPE].js at the above code.
   

   <pre class='brush:html'>
   YOUR SOURCE CODE
   </pre>
   

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