# TIL

> Today I Learned

A collection of concise write-ups on small things I learn day to day across a
variety of languages and technologies. These are things that don't really
warrant a full blog post. These are mostly things I learn by pairing with
smart people at [Hashrocket](http://hashrocket.com/).

### clojure

- [Expanding Macros](clojure/expanding-macros.md)
- [Quick Clojure Docs](clojure/quick-clojure-docs.md)
- [Specify the Directory of a Shell Command](clojure/specify-the-directory-of-a-shell-command.md)
- [Splitting On Whitespace](clojure/splitting-on-whitespace.md)
- [Swap Two Items in a Vector](clojure/swap-two-items-in-a-vector.md)
- [Type of Anything](clojure/type-of-anything.md)

### devops

- [Check The Status of All Services](devops/check-the-status-of-all-services.md)
- [Push Non-master Branch To Heroku](devops/push-non-master-branch-to-heroku.md)
- [Reload The nginx Configuration](devops/reload-the-nginx-configuration.md)
- [Wipe A Heroku Postgres Database](devops/wipe-a-heroku-postgres-database.md)

### git

- [Accessing a Lost Commit](git/accessing-a-lost-commit.md)
- [Checkout Old Version Of A File](git/checkout-old-version-of-a-file.md)
- [Checkout Previous Branch](git/checkout-previous-branch.md)
- [Clean Out All Local Branches](git/clean-out-all-local-branches.md)
- [Delete All Untracked Files](git/delete-all-untracked-files.md)
- [Dry Runs in Git](git/dry-runs-in-git.md)
- [Intent To Add](git/intent-to-add.md)
- [Last Commit A File Appeared In](git/last-commit-a-file-appeared-in.md)
- [List Filenames Without The Diffs](git/list-filenames-without-the-diffs.md)
- [List Untracked Files](git/list-untracked-files.md)
- [Single Key Presses in Interactive Mode](git/single-key-presses-in-interactive-mode.md)
- [Staging Changes Within Vim](git/staging-changes-within-vim.md) 
- [Staging Stashes Interactively](git/staging-stashes-interactively.md)
- [Stashing Only Unstaged Changes](git/stashing-only-unstaged-changes.md)
- [Stashing Untracked Files](git/stashing-untracked-files.md)
- [Verbose Commit Message](git/verbose-commit-message.md)

### go

- [Not So Random](go/not-so-random.md)

### javascript

- [Character Codes from Keyboard Listeners](javascript/character-codes-from-keyboard-listeners.md)
- [Throttling A Function Call](javascript/throttling-a-function-call.md)
- [Truthiness of Integer Arrays](javascript/truthiness-of-integer-arrays.md)

### postgres

- [Auto Expanded Display](postgres/auto-expanded-display.md)
- [Checking The Type Of A Value](postgres/checking-the-type-of-a-value.md)
- [Configure The Timezone](postgres/configure-the-timezone.md)
- [Count Records By Type](postgres/count-records-by-type.md)
- [Default Schema](postgres/default-schema.md)
- [Extracting Nested JSON Data](postgres/extracting-nested-json-data.md)
- [Fizzbuzz With Common Table Expressions](postgres/fizzbuzz-with-common-table-expressions.md)
- [Generate Series Of Numbers](postgres/generate-series-of-numbers.md)
- [Intervals Of Time By Week](postgres/intervals-of-time-by-week.md)
- [Limit Execution Time Of Statements](postgres/limit-execution-time-of-statements.md)
- [List All Columns Of A Specific Type](postgres/list-all-columns-of-a-specific-type.md)
- [Send A Command To psql](postgres/send-a-command-to-psql.md)
- [String Contains Another String](postgres/string-contains-another-string.md)
- [Temporarily Disable Triggers](postgres/temporarily-disable-triggers.md)
- [Temporary Tables](postgres/temporary-tables.md)
- [Timestamp Functions](postgres/timestamp-functions.md)
- [Toggling The Pager In PSQL](postgres/toggling-the-pager-in-psql.md)
- [Turning Timing On](postgres/turning-timing-on.md)
- [Use Argument Indexes](postgres/use-argument-indexes.md)
- [Using Intervals To Offset Time](postgres/using-intervals-to-offset-time.md)
- [Who Is The Current User](postgres/who-is-the-current-user.md)
- [Word Count for a Column](postgres/word-count-for-a-column.md)

### rails

- [All or Nothing Database Transactions](rails/all-or-nothing-database-transactions.md)
- [Attribute Getter without the Recursion](rails/attribute-getter-without-the-recursion.md)
- [Attribute Was](rails/attribute-was.md)
- [Capybara Page Status Code](rails/capybara-page-status-code.md)
- [Conditional Class Selectors in Haml](rails/conditional-class-selectors-in-haml.md)
- [Creating Records of Has_One Associations](rails/creating-records-of-has-one-associations.md)
- [Pretend Generations](rails/pretend-generations.md)
- [Retrieve An Object If It Exists](rails/retrieve-an-object-if-it-exists.md)
- [Show Pending Migrations](rails/show-pending-migrations.md)

### ruby

- [Are They All True?](ruby/are-they-all-true.md)
- [Comparing Class Hierarchy Relationships](ruby/comparing-class-hierarchy-relationships.md)
- [Create an Array of Stringed Numbers](ruby/create-an-array-of-stringed-numbers.md)
- [Destructuring Arrays In Blocks](ruby/destructuring-arrays-in-blocks.md)
- [Disassemble Some Codes](ruby/disassemble-some-codes.md)
- [Evaluating One-Off Commands](ruby/evaluating-one-off-commands.md)
- [FactoryGirl Sequences](ruby/factory-girl-sequences.md)
- [Finding The Source of Ruby Methods](ruby/finding-the-source-of-ruby-methods.md)
- [Limit Split](ruby/limit-split.md)
- [Override The Initial Sequence Value](ruby/override-the-initial-sequence-value.md)
- [Parallel Bundle Install](ruby/parallel-bundle-install.md)
- [Percent Notation](ruby/percent-notation.md)
- [Question Mark Operator](ruby/question-mark-operator.md)
- [Squeeze Out The Extra Space](ruby/squeeze-out-the-extra-space.md)
- [Summing Collections](ruby/summing-collections.md)

### tmux

- [Create A Named tmux Session](tmux/create-a-named-tmux-session.md)
- [List All Key Bindings](tmux/list-all-key-bindings.md)
- [Organizing Windows](tmux/organizing-windows.md)
- [Reclaiming The Entire Window](tmux/reclaiming-the-entire-window.md)
- [tmux in your tmux](tmux/tmux-in-your-tmux.md)

### vim

- [The Black Hole Register](vim/the-black-hole-register.md)
- [Buffer Time Travel](vim/buffer-time-travel.md)
- [Check Your Current Color Scheme](vim/check-your-current-color-scheme.md)
- [Close the Current Buffer](vim/close-the-current-buffer.md)
- [Coerce The Current Filetype](vim/coerce-the-current-filetype.md)
- [Count the Number of Matches](vim/count-the-number-of-matches.md)
- [Create A New File In A New Directory](vim/create-a-new-file-in-a-new-directory.md)
- [End Of The Word](vim/end-of-the-word.md)
- [Generate and Edit Rails Migration](vim/generate-and-edit-rails-migration.md)
- [Head of File Name](vim/head-of-file-name.md)
- [Help For Non-Normal Mode Features](vim/help-for-non-normal-mode-features.md)
- [Horizontal to Vertical and Back Again](vim/horizontal-to-vertical-and-back-again.md)
- [Incremental Searching](vim/incremental-searching.md)
- [Interactive Buffer List](vim/interactive-buffer-list.md)
- [Joining Lines Together](vim/joining-lines-together.md)
- [List All Buffers](vim/list-all-buffers.md)
- [List Of Plugins](vim/list-of-plugins.md)
- [Marks Across Vim Sessions](vim/marks-across-vim-sessions.md)
- [Moving To A Specific Line](vim/moving-to-a-specific-line.md)
- [NETRW Listing Styles](vim/netrw-listing-styles.md)
- [Open an Unnamed Buffer](vim/open-an-unnamed-buffer.md)
- [Opening a URL](vim/opening-a-url.md)
- [Preventing Typos with Abbreviations](vim/preventing-typos-with-abbreviations.md)
- [Previous Buffer](vim/previous-buffer.md)
- [Previous Visual Selection](vim/previous-visual-selection.md)
- [Quick File Info](vim/quick-file-info.md)
- [Quick Man Pages](vim/quick-man-pages.md)
- [Quick Quickfix List Navigation](vim/quick-quickfix-list-navigation.md)
- [Re-indenting Your Code](vim/reindenting-your-code.md)
- [Rename Current File](vim/rename-current-file.md)
- [Repeat The Previous Change](vim/repeat-the-previous-change.md)
- [Scrolling Relative to the Window](vim/scrolling-relative-to-the-window.md)
- [Set Your Color Scheme](vim/set-your-color-scheme.md)
- [Split Different](vim/split-different.md)
- [Swap Occurrences Of Two Words](vim/swap-occurrences-of-two-words.md)
- [Tabs To Spaces](vim/tabs-to-spaces.md)
- [The Vim Info File](vim/the-vim-info-file.md)
- [Verbose Commits With Fugitive](vim/verbose-commits-with-fugitive.md)
- [View Commit History of a File](vim/view-commit-history-of-a-file.md)
- [Viewing Man Pages with man.vim](vim/viewing-man-pages-with-man-vim.md)
- [Vim Without The Extras](vim/vim-without-the-extras.md)
- [Whole Line Auto-Completion](vim/whole-line-auto-completion.md)
- [Wrap With Some Room](vim/wrap-with-some-room.md)

### zsh

- [All The Environment Variables](zsh/all-the-environment-variables.md)
- [Cat A File With Line Numbers](zsh/cat-a-file-with-line-numbers.md)
- [Check If A Port Is In Use](zsh/check-if-a-port-is-in-use.md)
- [Clear The Screen](zsh/clear-the-screen.md)
- [Create A File Descriptor with Process Substitution](zsh/create-a-file-descriptor-with-process-substitution.md)
- [Killing A Frozen SSH Session](zsh/killing-a-frozen-ssh-session.md)
- [Repeat Yourself](zsh/repeat-yourself.md)
- [Saying Yes](zsh/saying-yes.md)
- [Search History](zsh/search-history.md)
- [Switch Versions of a Brew Formula](zsh/switch-versions-of-a-brew-formula.md)
- [Watch The Difference](zsh/watch-the-difference.md)
- [Watch This Run Repeatedly](zsh/watch-this-run-repeatedly.md)
- [Where Are The Binaries?](zsh/where-are-the-binaries.md)

## About

I shamelessly stole this idea from
[thoughtbot/til](https://github.com/thoughtbot/til).

## Other TIL Collections

- [Today I Learned by Hashrocket](https://til.hashrocket.com)
- [jwworth/til](https://github.com/jwworth/til)
- [thoughtbot/til](https://github.com/thoughtbot/til)

## License

© 2015 Josh Branchaud

This repository is licensed under the MIT license. See `LICENSE` for
details.