JScript dosyalarınızı nasıl çalıştırırsınız?

JScript kodlarını derlemek için:
PATH ortamına dizini ekleyeceksiniz ki jsc derlenecekDosyaAdi.js dediğinizde jsc.exe dosyasını leb demeden bulsun sisteminiz.

1. Use the Windows search feature to find jsc.exe on your drive. The exact name of the directory where jsc.exe is located depends on the name and location of the Windows directory and the version of the .NET Framework that is installed. If you have more than one version of the .NET Framework installed, you must determine which version to use (typically the latest version).
   For example, the compiler might be located at C:\Windows\Microsoft.NET\Framework\v2.0.50727.
2. To display the System Information dialog box, right-click Computer or My Computer on the desktop, and then click Properties.
3. If you are using Windows Vista or Windows 7, click Advanced System settings in the resulting Control Panel window.
4. On the Advanced tab of the System Properties dialog box, click the Environment Variables button.
5. Under System variables, select Path from the list and click Edit.
6. In the Edit System Variable dialog box, move the cursor to the end of the string in the Variable Value box and type a semicolon (;) followed by the full directory name that you found in Step 1.
   For example, if the compiler is at the location specified in the example in Step 1, you would type the following:
   ;C:\Windows\Microsoft.NET\Framework\v2.0.50727
7. Click OK to confirm your edits and close the dialog boxes.
8. Open a new command prompt.

Yukarıda size .Net Framework 2.0 için yol göstermiş ama bende 4 versiyonu için yolu ve aradığımız jsc.exe dosyasını göstereyim. Böylece kimse bir daha PATH ne iş yapara Environment Variables ne iş yapar diye düşünmesin ;)

Kodumuz şu olsun:

print("Bu yazı bir exeden çıkacak");

Çıktımız ise şu:

NODE_ENV nasıl bir şey?

Aşağıdaki yazıyı kavrayışınızı derinleştirmeniz için derinlemesine yazıyorum. Umarım yüksek anlayış seviyesine varmanızda faydası olur ;)

Node uygulamanızın test mi production mı, development mu olduğunu ve ona göre çalıştırılmasına karar verdiğiniz noktada sizin de benim gibi process.env.NODE_ENV değerine atama yapmanız gerekecek.
Ama önce process.env ne getiriyor ve anlamı ne?

C:\temp\nodeapp>node app.js
process.env = {"ALLUSERSPROFILE":"C:\\ProgramData","APPDATA":"C:\\Users\\cem\\AppData\\Roaming","CommonProgramFiles":"C:\\Program Files\\Common Files","CommonProgramFiles(x86)":"C:\\Program Files (x86)\\Common Files","CommonProgramW6432":"C:\\Program Files\\Common Files","COMPUTERNAME":"G6YE305003NG","ComSpec":"C:\\Windows\\system32\\cmd.exe","ConEmuANSI":"ON","ConEmuAnsiLog":"","ConEmuArgs":"","ConEmuBackHWND":"0x000A098A","ConEmuBaseDir":"C:\\_Portables\\ConEmu\\ConEmu","ConEmuBuild":"141208","ConEmuConfig":"","ConEmuDir":"C:\\_Portables\\ConEmu","ConEmuDrawHWND":"0x00040A1E","ConEmuDrive":"C:","ConEmuHooks":"Enabled","ConEmuHWND":"0x00080978","ConEmuPID":"4228","ConEmuServerPID":"4600","ConEmuWorkDir":"C:\\Users\\cem","ConEmuWorkDrive":"C:","FP_NO_HOST_CHECK":"NO","HOMEDRIVE":"C:","HOMEPATH":"\\Users\\cem","LOCALAPPDATA":"C:\\Users\\cem\\AppData\\Local","LOGONSERVER":"\\\\G6YE305003NG","NUMBER_OF_PROCESSORS":"4","OS":"Windows_NT","Path":"C:\\_Portables\\ConEmu\\ConEmu;C:\\Program Files\\Common Files\\Microsoft Shared\\Windows Live;C:\\Program Files (x86)\\Common Files\\Microsoft Shared\\Windows Live;C:\\Program Files (x86)\\Intel\\iCLS Client\\;C:\\Program Files\\Intel\\iCLS Client\\;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Intel\\OpenCL SDK\\3.0\\bin\\x86;C:\\Program Files (x86)\\Intel\\OpenCL SDK\\3.0\\bin\\x64;C:\\Program Files (x86)\\Windows Kits\\8.1\\Windows Performance Toolkit\\;C:\\Program Files\\Microsoft SQL Server\\110\\Tools\\Binn\\;C:\\Program Files\\Microsoft\\Web Platform Installer\\;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\IPT;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\IPT;c:\\_Portables\\mysql-5.6.15-winx64\\bin;C:\\Program Files (x86)\\MySQL\\MySQL Utilities 1.3.6\\;C:\\Program Files\\MySQL\\MySQL Server 5.1\\bin;C:\\Program Files\\TortoiseSVN\\bin;C:\\Program Files (x86)\\Microsoft SDKs\\TypeScript\\1.0\\;C:\\xampp\\php;C:\\ProgramData\\ComposerSetup\\bin;C:\\Program Files (x86)\\Windows Live\\Shared;C:\\Program Files (x86)\\Git\\cmd;C:\\_Portables\\ConEmu;C:\\Program Files\\nodejs\\;C:\\Users\\cem\\AppData\\Roaming\\npm","PATHEXT":".COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC","PROCESSOR_ARCHITECTURE":"AMD64","PROCESSOR_IDENTIFIER":"Intel64 Family 6 Model 58 Stepping 9, GenuineIntel","PROCESSOR_LEVEL":"6","PROCESSOR_REVISION":"3a09","ProgramData":"C:\\ProgramData","ProgramFiles":"C:\\Program Files","ProgramFiles(x86)":"C:\\Program Files (x86)","ProgramW6432":"C:\\Program Files","PROMPT":"$P$G","PSModulePath":"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules\\","PUBLIC":"C:\\Users\\Public","SESSIONNAME":"Console","SystemDrive":"C:","SystemRoot":"C:\\Windows","TEMP":"C:\\Users\\cem\\AppData\\Local\\Temp","TMP":"C:\\Users\\cem\\AppData\\Local\\Temp","USERDOMAIN":"G6YE305003NG","USERNAME":"cem","USERPROFILE":"C:\\Users\\cem","VS110COMNTOOLS":"C:\\Program Files (x86)\\Microsoft Visual Studio 11.0\\Common7\\Tools\\","VS120COMNTOOLS":"C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\Common7\\Tools\\","windir":"C:\\Windows","windows_tracing_flags":"3","windows_tracing_logfile":"C:\\BVTBin\\Tests\\installpackage\\csilogfile.log"}

Hangi işletim sistemini kullanırsanız kullanın, sistem üzerinde kaynaklara erişim için ortam değişkenleri kullanılır. Bu değişkenler hem kullnıcıya hem sisteme göre iki türde olur. Sisteme dahil olan değikenlere tüm kullanıcılar ve uygulamaları erişebilirken kullanıcıya ait olanlara ise sadece değişkeni kendisinde tanımlı kullanıcı erişebilir.
Sistem değişkenleri registry içinde burada tanımlıdır: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment\


Yerel değişkenler(kullanıcı değişkenleri) ise burada: HKEY_CURRENT_USER\Environment\


Ayrıca bu değişkenlere bilgisayarım ikonuna sağ tuş ve sistem değişkenleri kısmından erişebilirsiniz:


Tüm ortam değişkenlerini bulmamızı sağlayan node scriptini bir dosyaya yazın ve c:\>node dosyaAdi.js diyerek çalıştırın:

console.log('process.env = ' + JSON.stringify(process.env));

Sonucu json formattırladığımızda değerleri açık seçik göreceksiniz:

{
  "ALLUSERSPROFILE": "C:\\ProgramData",
  "APPDATA": "C:\\Users\\cem\\AppData\\Roaming",
  "CommonProgramFiles": "C:\\Program Files\\Common Files",
  "CommonProgramFiles(x86)": "C:\\Program Files (x86)\\Common Files",
  "CommonProgramW6432": "C:\\Program Files\\Common Files",
  "COMPUTERNAME": "G6YE305003NG",
  "ComSpec": "C:\\Windows\\system32\\cmd.exe",
  "ConEmuANSI": "ON",
  "ConEmuAnsiLog": "",
  "ConEmuArgs": "",
  "ConEmuBackHWND": "0x000A098A",
  "ConEmuBaseDir": "C:\\_Portables\\ConEmu\\ConEmu",
  "ConEmuBuild": "141208",
  "ConEmuConfig": "",
  "ConEmuDir": "C:\\_Portables\\ConEmu",
  "ConEmuDrawHWND": "0x00040A1E",
  "ConEmuDrive": "C:",
  "ConEmuHooks": "Enabled",
  "ConEmuHWND": "0x00080978",
  "ConEmuPID": "4228",
  "ConEmuServerPID": "4600",
  "ConEmuWorkDir": "C:\\Users\\cem",
  "ConEmuWorkDrive": "C:",
  "FP_NO_HOST_CHECK": "NO",
  "HOMEDRIVE": "C:",
  "HOMEPATH": "\\Users\\cem",
  "LOCALAPPDATA": "C:\\Users\\cem\\AppData\\Local",
  "LOGONSERVER": "\\\\G6YE305003NG",
  "NUMBER_OF_PROCESSORS": "4",
  "OS": "Windows_NT",
  "Path": "C:\\_Portables\\ConEmu\\ConEmu;C:\\Program Files\\Common Files\\Microsoft Shared\\Windows Live;C:\\Program Files (x86)\\Common Files\\Microsoft Shared\\Windows Live;C:\\Program Files (x86)\\Intel\\iCLS Client\\;C:\\Program Files\\Intel\\iCLS Client\\;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Intel\\OpenCL SDK\\3.0\\bin\\x86;C:\\Program Files (x86)\\Intel\\OpenCL SDK\\3.0\\bin\\x64;C:\\Program Files (x86)\\Windows Kits\\8.1\\Windows Performance Toolkit\\;C:\\Program Files\\Microsoft SQL Server\\110\\Tools\\Binn\\;C:\\Program Files\\Microsoft\\Web Platform Installer\\;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\IPT;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\IPT;c:\\_Portables\\mysql-5.6.15-winx64\\bin;C:\\Program Files (x86)\\MySQL\\MySQL Utilities 1.3.6\\;C:\\Program Files\\MySQL\\MySQL Server 5.1\\bin;C:\\Program Files\\TortoiseSVN\\bin;C:\\Program Files (x86)\\Microsoft SDKs\\TypeScript\\1.0\\;C:\\xampp\\php;C:\\ProgramData\\ComposerSetup\\bin;C:\\Program Files (x86)\\Windows Live\\Shared;C:\\Program Files (x86)\\Git\\cmd;C:\\_Portables\\ConEmu;C:\\Program Files\\nodejs\\;C:\\Users\\cem\\AppData\\Roaming\\npm",
  "PATHEXT": ".COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC",
  "PROCESSOR_ARCHITECTURE": "AMD64",
  "PROCESSOR_IDENTIFIER": "Intel64 Family 6 Model 58 Stepping 9, GenuineIntel",
  "PROCESSOR_LEVEL": "6",
  "PROCESSOR_REVISION": "3a09",
  "ProgramData": "C:\\ProgramData",
  "ProgramFiles": "C:\\Program Files",
  "ProgramFiles(x86)": "C:\\Program Files (x86)",
  "ProgramW6432": "C:\\Program Files",
  "PROMPT": "$P$G",
  "PSModulePath": "C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules\\",
  "PUBLIC": "C:\\Users\\Public",
  "SESSIONNAME": "Console",
  "SystemDrive": "C:",
  "SystemRoot": "C:\\Windows",
  "TEMP": "C:\\Users\\cem\\AppData\\Local\\Temp",
  "TMP": "C:\\Users\\cem\\AppData\\Local\\Temp",
  "USERDOMAIN": "G6YE305003NG",
  "USERNAME": "cem",
  "USERPROFILE": "C:\\Users\\cem",
  "VS110COMNTOOLS": "C:\\Program Files (x86)\\Microsoft Visual Studio 11.0\\Common7\\Tools\\",
  "VS120COMNTOOLS": "C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\Common7\\Tools\\",
  "windir": "C:\\Windows",
  "windows_tracing_flags": "3",
  "windows_tracing_logfile": "C:\\BVTBin\\Tests\\installpackage\\csilogfile.log"
}

Bu environment variables uzun klasör adları yazmayı önlediği gibi hızlıca çalıştırmak istediğiniz uygulamalara da klasör adları eklemeden gidebilmenizi sağlar. Klasörlere ise %YOL_ADI% ile erişebilirsiniz.

Referanslar:

1. environmentvariables.org
2. www.computerhope.com