page_title: Start (command)
section_title: Other environments
hierarchical_section_title: Start (command) / Other environments
caption_attribution_description: English: The end of the HELP command output from RT-11SJ running on a PDP-11/34 displayed on a VT100.
context_page_description: In computing, start is a command of the IBM OS/2, Microsoft Windows and ReactOS command-line interpreter cmd.exe to start programs or batch files or to open files or directories using the default program. start is not available as a standalone program. The underlying Win32 API is ShellExecute.
  The command is also one of the basic commands implemented in the Keyboard Monitor of the DEC RT-11 operating system.
  The TOPS-10 and TOPS-20 operating systems also provide a start command. It is used to start a program in memory at a specified address.
context_section_description: Typical Unix shells (bash, etc.) have no built-in registry of file types and associated default applications. Linux command-line tools with similar functions include xdg-open and run-mailcap.
  On Cygwin, the command is implemented as the cygstart executable.
  In PowerShell, the Invoke-Item cmdlet is used to invoke an executable or open a file.
  On Apple macOS, the corresponding command is open.
  On Stratus OpenVOS it is start_process.
caption: Description of the START command of RT-11SJ displayed on a VT100.
exif: {"GPS GPSImgDirection": "50", "GPS GPSImgDirectionRef": "M", "GPS GPSLatitudeRef": "N", "GPS GPSLatitude": "[40, 43, 154573/5000]", "GPS GPSLongitudeRef": "W", "GPS GPSLongitude": "[73, 59, 138533/2500]", "GPS GPSAltitudeRef": "0", "GPS GPSAltitude": "0", "GPS GPSTimeStamp": "[0, 1, 2]", "GPS GPSProcessingMethod": "ASCII", "GPS GPSDate": "2014:05:16", "Image GPSInfo": "462", "Image Model": "Nexus 5", "Image ExifOffset": "134", "Image YCbCrPositioning": "Centered", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image XResolution": "72", "Image Make": "LGE", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail XResolution": "72", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail JPEGInterchangeFormat": "807", "Thumbnail JPEGInterchangeFormatLength": "13700", "EXIF ApertureValue": "63/25", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "432", "EXIF DateTimeDigitized": "2014:05:15 20:01:12", "EXIF ShutterSpeedValue": "4907/1000", "EXIF ColorSpace": "sRGB", "EXIF DateTimeOriginal": "2014:05:15 20:01:12", "EXIF FlashPixVersion": "0100", "EXIF ExposureBiasValue": "0", "EXIF ExifImageLength": "2448", "EXIF ExifVersion": "0220", "EXIF ExifImageWidth": "3264", "EXIF FocalLength": "397/100", "EXIF Flash": "Flash did not fire", "EXIF ExposureTime": "1/30", "EXIF ISOSpeedRatings": "299", "EXIF ComponentsConfiguration": "YCbCr", "EXIF FNumber": "12/5"}