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!SYSEDIT.EXE

The Renegar edited this page Oct 11, 2026 · 4 revisions

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System File Editor

A focused editor just for core DOS system files, for quick viewing and editing.

System File Editor

Executable

!SYSEDIT.EXE

Parameters

  • None

Keyboard shortcuts

Shortcut Key Function
Ctrl+S Save
Ctrl+P Print
Ctrl+L Toggle line numbers
Ctrl+Del Clear
Ctrl+Ins Character map
Ctrl+C/X/V Copy / Cut / Paste
F11 Toggle full-screen
Alt+Tab Cycle tabs

Functional Overview

  • There will be a tab for DOS, and depending on whether installed, Windows and 4DOS too.
  • Select a tab to view and edit the corresponding system files
  • FreeDOS is automatically detected and will show FDAUTO.BAT and FDCONFIG.SYS accordingly.

Choose Clr to erase everything in the currently visible file. Chars shows a character palette to insert extended/special characters.

Text can be marked holding down the Shift key - and then Cut (CTRL+X), Copied (CTRL+C) or Pasted (CTRL+V) anywhere on the page, other pages, or pages in other tabs.

Words will wrap at the end of each line intelligently to the next, for natural typing.

Pressing CTRL+L will toggle display of line numbers (on by default).

Press F11 or the Maximize titlebar button to go full-screen editing.

System File Editor

Printing

You can print the system file with the Print button, or CTRL+P shortcut. Learn more about printing options.

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