02-21-2010
You're not doing low-level I/O here, your write is probably going straight into cache. Try opening with O_DIRECT.
Please edit your post to put code in code tags like the thread posting page suggests. [ code ] stuff [ /code ] without the spaces in the tags. Preferably before a mod needs to do so for you.
Surely you could write custom patterns with either dd or dd_rescue though! dd_rescue in particular shows lots of progress info. Just feed them custom patterns on stdin and you'll have your custom patterns.
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LEARN ABOUT DEBIAN
fbsetroot
FBSETROOT(1) Fluxbox Manual FBSETROOT(1)
NAME
fbsetroot - a simple background utility used by the fluxbox(1) window manager, originally written for and by the original blackbox(1)
window manager.
SYNOPSIS
fbsetroot [-display display] -solid color
fbsetroot [-display display] -mod x y -fg color -bg color
fbsetroot [-display display] -gradient texture -from color -to color
fbsetroot -help
DESCRIPTION
fbsetroot(1) is a utility that can control the appearance of the root window in three ways: Either give it a solid color, or write a two
color modula pattern to it, or render a gradient texture, based on two different colors.
fbsetroot resembles xsetroot(1) in this functionality but it supports multiple-screen displays, and gradient textures the same way as
blackbox or fluxbox does. It doesn't handle cursors etc. fbsetroot was originally part of the Blackbox package and was carried over with
the code that became Fluxbox. It was called bsetroot back in those days.
If any errors are encountered, fbsetroot will use either gxmessage(1) or xmessage(1) to inform the user of errors.
OPTIONS
fbsetroot operates in three ways, you must choose one of the first 3 options:
-solid color
Sets the root window to specified color.
-mod x y
Creates a modula pattern. You must specify -bg and -fg colors.
-gradient texturestring
Renders the specified texture string to the root window.
texturestring may be one of:
Horizontal / Vertical / Diagonal / Crossdiagonal / Pipecross / Elliptic / Rectangle / Pyramid
Select one of these texture types, they only apply when -gradient is specified. You must also specify both a -from and a -to color.
-display display
Tells fbsetroot to connect to the specified display.
-bg, -background color
Background color. Needed for -mod patterns.
-fg, -foreground color
Foreground color. Needed for -mod patterns.
-from color
Start color for rendering textures. Needed for -gradient patterns.
-to color
Ending color for rendering textures. Needed for -gradient patterns.
-help
Prints version info and short help text.
AUTHORS
This manpage was modified by Curt "Asenchi" Micol <asenchi at asenchi.com> for the Fluxbox window manager.
Further updates for fluxbox-1.1.2 and conversion to asciidoc format by Jim Ramsay <i.am at jimramsay.com>
SEE ALSO
fluxbox(1) fbsetbg(1) xsetroot(1) xmessage(1) gxmessage(1)
AUTHOR
Jim Ramsay <i.am@jimramsay.com>
Author.
fbsetroot.txt 28 October 2011 FBSETROOT(1)