tmux new [-s name] [cmd](:new) - new session
tmux ls(:ls) - list sessionstmux switch [-t name](:switch) - switches to an existing session
| git reset 56e05fced #resets index to former commit; replace '56e05fced' with your commit code | |
| git reset --soft HEAD@{1} #moves pointer back to previous HEAD | |
| git commit -m "Revert to 56e05fced" | |
| git reset --hard #updates working copy to reflect the new commit |
These commands were taking from the talk Introduction to Advanced Bash Usage by James Pannacciulli
Updated 21 Jan 2017 06:54:53
| var mongoose = require('mongoose') | |
| var Schema = mongoose.Schema | |
| mongoose.Promise = global.Promise | |
| mongoose.connect(process.env.MONGO_URL || 'mongodb://localhost:27017/woxcut') | |
| var db = mongoose.connection | |
| db.on('error', console.error.bind(console, 'Connection Error:')) |
The IPython Notebook has two different keyboard input modes. Edit mode allows you to type code/text into a cell and is indicated by a green cell border. Command mode binds the keyboard to notebook level actions and is indicated by a grey cell border.
| var async = require('async'); | |
| var parallel = require('async/parallel'); | |
| function giveData() { | |
| var data; | |
| async.parallel([ | |
| function(callback){ | |
| callback(null, 'one'); | |
| }, | |
| function(callback){ |
| What is the relationship between Node.js and V8? Can Node work without V8? | |
| How come when you declare a global variable in any Node.js file it’s not really global to all modules? | |
| When exporting the API of a Node module, why can we sometimes use exports and other times we have to use module.exports? | |
| Can we require local files without using relative paths? | |
| Can different versions of the same package be used in the same application? | |
| What is the Event Loop? Is it part of V8? | |
| What is the Call Stack? Is it part of V8? | |
| What is the difference between setImmediate and process.nextTick? | |
| How do you make an asynchronous function return a value? | |
| Can callbacks be used with promises or is it one way or the other? |
| var app = require('koa')() | |
| , logger = require('koa-logger') | |
| , json = require('koa-json') | |
| , views = require('koa-views') | |
| , onerror = require('koa-onerror') | |
| , session = require('koa-session'); | |
| var mongoose = require(__dirname + '/database/connection'); | |
| // all routes - TODO |
| unlock HR, Scott etc. users in Oracle Database 12c. | |
| Step 1: | |
| C:\> sqlplus / as sysdba | |
| SQL> SHOW con_name | |
| SQL> SELECT name, con_id FROM v$pdbs; | |
| SQL> SELECT name FROM v$active_services WHERE con_id = 3; | |
| Step 2: Update tnsname.ora file |
| SQL*Plus: Release 12.1.0.1.0 Production on Wed Sep 21 12:15:12 2016 | |
| Copyright (c) 1982, 2013, Oracle. All rights reserved. | |
| Enter user-name: / as sysadmin | |
| SP2-0306: Invalid option. | |
| Usage: CONN[ECT] [{logon|/|proxy} [AS {SYSDBA|SYSOPER|SYSASM|SYSBACKUP|SYSDG|SYSKM}] [edition=value]] | |
| where <logon> ::= <username>[/<password>][@<connect_identifier>] | |
| <proxy> ::= <proxyuser>[<username>][/<password>][@<connect_identifier>] |