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SPC
    SPC: find file
    , switch buffer
    . browse files
    : MX
    ; EX
    < switch buffer
    ` eval
    u universal arg
    x pop up scratch

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How to convert existing phoenix app to an umbrella app.
https://elixir-lang.slack.com/archives/phoenix/p1472921051000134


chrismccord [10:14 PM]  
@alanpeabody yes, it's straightforward

[10:14]  
1) mix new my_umbrella --umbrella

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#!/bin/bash
[[ $UID == 0 ]] || { echo "run as sudo to install"; exit 1; }

REPO="https://github.com/BurntSushi/ripgrep/releases/download/"
RG_LATEST=$(curl -sSL "https://api.github.com/repos/BurntSushi/ripgrep/releases/latest" | jq --raw-output .tag_name)
RELEASE="${RG_LATEST}/ripgrep-${RG_LATEST}-x86_64-unknown-linux-musl.tar.gz"

TMPDIR=$(mktemp -d)
cd $TMPDIR
wget -O - ${REPO}${RELEASE} | tar zxf - --strip-component=1

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SPC s c remove highlight

**** Files manipulations key bindings
Files manipulation commands (start with ~f~):

| Key Binding | Description                                                    |
|-------------+----------------------------------------------------------------|
| ~SPC f c~   | copy current file to a different location                      |
| ~SPC f C d~ | convert file from unix to dos encoding                         |
| ~SPC f C u~ | convert file from dos to unix encoding                         |

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Select resources_assign.* 
FROM resources_assign 
LEFT JOIN termine ON (termine.termin_id = resources_assign.`assign_user_id`)
LEFT JOIN auth_user_md5 ON (auth_user_md5.user_id = resources_assign.`assign_user_id`)
WHERE auth_user_md5.user_id IS NULL
AND termine.termin_id IS NULL

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Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

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=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')