NAME
root-tail - print text directly to X11 root window
SYNOPSIS
root-tail [-g|--geometry GEOMETRY] [-fn|--font FONTSPEC] [--color
color] [--reload SEC COMMAND] [--shade] [--outline] [--minspace]
[--noflicker] [-f|--fork] [--reverse] [--whole] [--partial] [--update]
[--cont STRING] [--wordwrap] [--justify] [--noinitial] [--frame] [-id
ID] [-i|--interval SECONDS] [-V] file1[,color[,desc]]
[file2[,color[,desc]]]
DESCRIPTION
Displays a given file anywhere on your X11 root window, i.e. it is kind
of tail -f for multiple files using your desktop background as output
window.
All non-option arguments on the command line are files to be logged. A
null desc (example: "/var/log/messages,red,") will prevent the printing
of a description and the []’s.
General Options
--color COLOR
Use COLOR as default.
--font | -fn FONTSPEC
Use font FONTSPEC. This can be either a fixed width font like
-fn fixed or any font using -fn ’-*-*-*-*-*-*-*-*-*-*-*-*-*-*’
with the appropriate fields filled out (see xfontsel).
Specifying a different FONTSPEC before each filename will cause
each file to be displayed in a different font.
-f | --fork
Forks to the background.
--reverse
Display the files in reverse order, with the newest lines at the
top.
--whole
Only display whole lines. If the last line of a file doesn’t yet
end with a newline character then wait until it does before
displaying it. This is the default if more than one file is
being displayed.
--partial
This is the opposite of the --whole option (see above). It
displays lines even if they don’t yet have a newline at the end.
This is the default if only one file is being displayed.
--update
Update partial lines ’in place’ if they are still on the screen
when they are updated in their files. Using --update
automatically turns on --partial.
--cont STRING
When partial lines are broken into two lines in the display,
prefix the 2nd line with STRING. Defaults to "|| ". Specify the
"--whole" argument to ensure partial lines are never displayed,
or specify "--update" to attempt to "repair" broken lines in-
place.
--cont-color COLOR
Use COLOR when displaying the continuation string (as optionally
specified with the --cont option above).
--wordwrap
The default behaviour is to fit as much as possible onto each
line of output, even if this means splitting a word between one
line and the next. The --wordwrap argument splits lines at
spaces if possible.
--justify
After wrapping long lines, attempt to justify the text to
produce a smooth right-hand margin. Implies --wordwrap.
--reload SEC COMMAND
Re-display the file(s) and run COMMAND every SEC seconds. The
default is to never re-display the file(s).
--shade
Add black shading to the font.
--outline
Add a black outline to the font (making redraws quite a bit
slower).
--minspace
Use minimum linespace even when using shading or outlining. This
might result in leftover pixels (dependign on font and logfile
content).
--noflicker
Use slower but flicker-free update.
--noinitial
Don’t display the end of the file(s) initially.
-id ID Use the given window ID for output instead of the root window.
-i | --interval SECONDS
Use the specified sleeping interval between checks instead of
the default 2.4 seconds. Fractional values are OK.
-V Print version information.
--frame
Draw a frame around the selected area. This is useful when
trying to find the perfect geometry.
EXAMPLE
root-tail -g 800x250+100+50 -font 10x20 /var/log/messages,green -font
12x24 /var/log/secure,red,’ALERT’
BUGS
Some desktop environments open a virtual root window and make it
difficult to share it. If you cannot see anything after starting root-
tail, try to find a setting "allow programs on desktop" or similar, or
manually specify a window id.
Should you happen to find any bugs please fix them and send me a diff.
NOTE: This program was modified by Marc Lehmann <pcg@goof.com>, who
couldn’t reach the original author. Please direct bug-reports etc. to
pcg@goof.com.
http://root-tail.plan9.de/