jkatayama

SSH

• id_rsa is a privateky
• id_rsa.pub is a public key
• authorized_keys is a list of public keys that are allowed to connect to the server

When to renew ssh keys?

• When you have a new computer

jkatayama

gh pr list -A @me               

date -j -v-24H +"%Y-%m-%dT%H:00"

jkatayama

```
git branch -a | egrep "(bitrise)"| sed 's/remotes\/origin\///' | xargs git push --delete origin
```


```shell
gh pr list --limit 100 --json number,title,url --jq '.[] | .url' --search "is:pr is:open yml" | while read URL; do\ngh pr close ${URL} -c "duplicate pr"\ndone
```

jkatayama

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

jkatayama

# Gemfile for iOS project
source "https://rubygems.org"

gem 'cocoapods'
# Folder reorganizer
gem 'synx'
# Task Automation
gem 'fastlane'

jkatayama

git-nuke multiple feature branches

for i in {1..10}\ndo\ngit-nuke feature/\#${i}\ndone

jkatayama

Show all download url

sudo sqlite3 ~/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV* 'select LSQuarantineDataURLString from LSQuarantineEvent' | more

quicklook files or directories with preview

qlmanage -p

jkatayama

Keybase proof

I hereby claim:

• I am jkatayama on github.
• I am jkatayama (https://keybase.io/jkatayama) on keybase.
• I have a public key ASDVU4uE8Cs5l6YKnmXN4R2X2XnblcJq4vncMIUvRscfuQo

To claim this, I am signing this object:

jkatayama

##calendar.h

#import <Foundation/Foundation.h>


@interface myCalender : NSObject{
    NSCalendar  *gcal;
    NSInteger   year;
    NSInteger   month;
}

jkatayama

### 二つの点の距離
``` swift

func distance(pointA: CGPoint, pontB: CGPoint) -> Float {
    let dx: Float = abs(pointA.x - pontB.x)
    let dy: Float = abs(pointA.y - pontB.y)
    let dist = sqrt(dx*dx + dy*dy)
    return dist
}