Scott Hollows – One Line At A Time

Technical tips for Oracle and Delphi

Flash Entire Windows Command Shell Background Colour On and Off (DOS Batch)

Grab your attention by making the windows command shell flash the background colour on and off

This is a DOS batch script, not an executable program
Tested on Windows 10 and Windows 11.

WARNING – containg flashing colours that may trigger seizures in people with photosensitive epilepsy. Use with caution and discontinue immediately if symptoms occur.

Download FLASHSHELL.bat

Syntax

FLASHSHELL.bat <iterations> <colour>

Examples

Flash 3 times YELLOW (default parameters)
FLASHSHELL.bat

Flash 6 times using YELLOW default colour.
FLASHSHELL.bat 6

Flash 10 times with RED colour.
FLASHSHELL.bat 10 RED

Supported colours YELLOW / RED / GREEN / BLUE / PURPLE / WHITE.
Default is YELLOW. Must be upper case

Want Faster Flashing ?

If you want the flashing to be faster, see the script comments regarding using CSCRIPT for the brief sleep period

WARNING – contains flashing colours that may trigger seizures in people with photosensitive epilepsy. Use with caution and discontinue immediately if symptoms occur.

With that in mind, I am only showing a screenshot rather than an animated image

Download FLASHSHELL.bat


Scott Hollows

  • Oracle & Delphi software developer based in Perth, Western Australia
  • Australian Oracle User Group – National Committee Member
  • Australian Delphi User Group – National Committee Member

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Scott Hollows
● 30+ years developing Oracle based OLTP and Data Warehouses. Oracle APEX, Oracle Forms, Oracle Reports, BI Publisher, Discoverer, SQL, PL/SQL and other Oracle technologies

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