Death and Dying Introduction. FEAR! Fear of the UNKNOWN Fear of the unknown toilet seat!
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Do Not Fear the Command LineYou're Smarter than It
Madrid 1st June 2017
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Do Not Fear the Command LineYou Are Smarter Than It
Peter Chittum, Developer Evangelist@pchittum
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Forward-Looking Statements
Statement under the Private Securities Litigation Reform Act of 1995:
This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if any of the assumptions proves incorrect, the results of salesforce.com, inc. could differ materially from the results expressed or implied by the forward-looking statements we make. All statements other than statements of historical fact could be deemed forward-looking, including any projections of product or service availability, subscriber growth, earnings, revenues, or other financial items and any statements regarding strategies or plans of management for future operations, statements of belief, any statements concerning new, planned, or upgraded services or technology developments and customer contracts or use of our services.
The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new functionality for our service, new products and services, our new business model, our past operating losses, possible fluctuations in our operating results and rate of growth, interruptions or delays in our Web hosting, breach of our security measures, the outcome of any litigation, risks associated with completed and any possible mergers and acquisitions, the immature market in which we operate, our relatively limited operating history, our ability to expand, retain, and motivate our employees and manage our growth, new releases of our service and successful customer deployment, our limited history reselling non-salesforce.com products, and utilization and selling to larger enterprise customers. Further information on potential factors that could affect the financial results of salesforce.com, inc. is included in our annual report on Form 10-K for the most recent fiscal year and in our quarterly report on Form 10-Q for the most recent fiscal quarter. These documents and others containing important disclosures are available on the SEC Filings section of the Investor Information section of our Web site.
Any unreleased services or features referenced in this or other presentations, press releases or public statements are not currently available and may not be delivered on time or at all. Customers who purchase our services should make the purchase decisions based upon features that are currently available. Salesforce.com, inc. assumes no obligation and does not intend to update these forward-looking statements.
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Any Computer User You Want To Use Command Line You Are Not Sure Where to Start
Who are you?
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Not an exhaustive "How To"How command line apps workUnderstand what you can doA Small Taste of Salesforce DX
What to Expect
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I'm using a Mac
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Overview of Command LinesHow Commands WorkMore Powerful StuffSalesforce CLIsWhere To Go Next (git, npm, brew, grep)
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A Brief History of User Interfaces
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This is my laptop. There are many like it, but this one is mine.
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Pros
Pros and Cons of Command Lines
Low Resource UsageConcise and PowerfulExpert FriendlyAutomate with Scripting
Cons
UnintuitiveCommands not ObviousNot Visually RichBeginner Unfriendly
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A few obvious statements follow…
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The command line is an app
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The command line executes commands
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Commands are little appsYou write them instead of clicking on them.
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Overview of Command LinesHow Commands WorkMore Powerful StuffSalesforce CLIsWhere To Go Next
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How a command works
Input(STDIN,
FILE)
Output(STDOUT
)
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How a command works
Input(STDIN,
FILE)
Output(STDOUT
)
Add something here about STDERR
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Sound familiar?
0013000000rqYCC
CASESAFEID()
0013000000rqYCCAA2
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There are also parameters
Input Output
Parameters
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Semicolon: Do one thing ; then do another
;
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Only do the seccond if the first one works correctly
&&
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Pipe: Take the output from the first thing and send it to the second
|
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Redirect: Take the output from the first thing and write to a file(Careful…this wipes the previous contents of the file)
>
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Append: Take the output from the first thing and write to the end of a file
>>
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bash (Windows 10)cygwincmdpowershell
What if I'm using Windows?
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DemoFiles, Folders, Input, Output
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Overview of Command LinesHow Commands WorkMore Powerful StuffSalesforce CLIsWhere To Go Next
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aliasCreate a shortcut for a more complicated command
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cat, head, tailMeow…Just kidding...different ways to read a file
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dogJust kidding…there is no dog...unless you make an alias called "dog"
Then dog does whatever you tell it to do…
...good dog
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wcNot the loo…word countcounts stuff
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findLook for files
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grepSearch in files(global regular expression print)
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sedModify data in a stream(stream editor)
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awkBasic programming language for Unix systems(not an acronym, and not covering today…)
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curlWeb request
(Windows has iwr)
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Democat, head, tail, wc, grep, sed
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Overview of Command LinesHow Commands WorkMore Powerful StuffSalesforce CLIsWhere To Go Next
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> curl https://blixtar-dev-ed.my.salesforce.com/services/data/v39.0/query?q=SELECT+Id,Name+FROM+Account+LIMIT+1 -H 'Authorization: Bearer 00D24000000IwtW!AQ4AQMiGG9NfUlO5njwZpODWCazHSUFRgM26olREehLfu9GPqq1JWSTxwUfgncjdET.13_G0dPm5SobOPuj_F0.vvlU9Ih44'
{"totalSize":1,"done":true,"records":[{"attributes":{"type":"Account","url":"/services/data/v39.0/sobjects/Account/001240000050EByAAM"},"Id":"001240000050EByAAM","Name":"DVLA"}]}
The trouble with curl
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Salesforce DX CLICLI for accessing Salesforce APIs
Currently in Pilot
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force-cliOpen source CLI project
To be superseded by Salesforce DX CLI
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Lightning CLIStatic Code Analysis for Lightning Components
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Heroku CLIFormerly Heroku toolbelt
Now a part of Salesforce DX CLI
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DemoFiles, Folders, Input, Output
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Overview of Command LinesHow Commands WorkMore Powerful StuffSalesforce CLIsWhere To Go Next
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Windows is case insensitiveUnix file permissionssudo versus Run As Administrator
Mac/Unix v Windows
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Powershell, CMD, cygwin (Windows shells)Z shell (popular powerful Unix shell)Package managers (brew, chocolatey, npm)Automating (cron, shell scripts)Source Control (git)Task Runners (gulp, grunt, …)awk (Unix programming language)REPLs (interactive mode programming)
All the other stuff
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Brief History of Command Lineshttp://bit.ly/brief-history-cmd-lines
Windows and Unix Command Line Equivalents: http://bit.ly/win2unixcmd
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My Stuff:
slideshare.net/chittum
salesforce.quip.com/rFA0Af9rhUza
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Q & AMadrid 1st June 2017
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?Questions?
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Thank Y u
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Q & ARemember to tell us what you think in the event survey www.LondonsCalling.net/survey/
Peter ChittumDeveloper [email protected]@pchittum
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Thank You
Peter ChittumDeveloper Evangelist
[email protected]@pchittum
Remember to tell us what you think in the event survey www.LondonsCalling.net/survey/