Building a new kernel using make-kpkg: [/BuildKernel]
Getting your palm or visor to work with linux: [/HandspringVisor]
Tips and tricks with [/ImageMagick].
PDF, PS and EPS
If you want to extract a figure from a pdf, you can select the graphic in Acrobat Reader, and then Print Selected Graphic to file. You get a PS, but not a valid one (at least not in your LaTeX document). If you do ps2pdf image.ps and after that pdf2ps image.pdf you do get a valid PostScript.
Hmmm... ps2ps input.ps output.ps seems to work as well.
LaTeX
If you use a subfigire with an (optional) caption, you cannot use square brackets in the caption without the necessary precautions: you have to enclose the square brackets in curly braces. For example:
\subfigure[$\sqrt[3]{2}$ does not work]{...}
\subfigure[{$\sqrt[3]{2}$ does work}]{...}
mplayer
To record an audio or video stream to file, use:
mplayer -dumpstream -dumpfile output.asf mmst://live.cinecast.capcave.com/SkyRadio -vc dummy -vo null
or similar. You could also for example record to a wav-file and then recode to mp3 or ogg (assuming the source is listed in playlist.txt):
mplayer -playlist playlist.txt -ao pcm -aofile mystream.wav -vc dummy -vo null oggenc mystream.wav -o output.ogg lame -m s mystream.wav -o output.mp3.
You can even do timed recording, using the crontab. For example, run mplayer at 11, and a killall -9 mplayer at 12 o'clock.
wget
To download a single page and all its requisites (even if they exist on separate web sites), and make sure the lot displays properly locally, use the following options:
wget -E -H -k -K -p url
at jobs
To send an email at a specified time and date, use at:
(user):~> at 9am Jan 27 at> mail -s Gefeliciteerd benjamin@email.com < email.txt at> ^D
Use custom headers and BCC's in mail that you send:
mail -s Test -a "From: Benjamin Vrolijk <benjaminvrolijk@gmail.com>" OneRecipient@email.com ~bAnotherOne@email.com ~bAndTheLastOne@email.com Hi there, etc. ^D
transcode set of images to movie
Using transcode this is quite simple:
1. Create a file "list" which contains a list of names of images of each frame 2. transcode -i list -x imlist,null -g 800x600 -y divx5,null -f 10 -o movie.avi -H 0
copying an entire directory, even through ssh
Copying a directory tree on an SMP system:
$ ( cd from-dir ; tar pcf - * ) | ( cd to-dir ; tar pxvf - )
Piping it through an SSH connection, to copy from a remote system:
$ ssh remote-system "( cd from-dir ; tar pcf - * )" | ( cd to-dir ; tar pxvf - )
Reversing it, from local to remote:
$ ( cd from-dir ; tar pcf - * ) | ssh remote-system "( cd to-dir ; tar pxvf - )"
Evolution
If Evolution acts weird and doesn't show new appointments - they will be stored in the calender.ics file - just kill all evolution and bonobo stuff, and restart evolution.
After upgrading my machine and Evolution with it (from v1.4 to v2.0 or something) all my "All day events" were running from 2.00 am on one day to 2.00 am on the next! So all birthdays etc. were spread over 2 days! I fixed this by copying a bit from my old calendar.ics (in ~/evolution/local/Calendar/) to the new one (in ~/.evolution/calendar/local/system/). The bit I copied was this:
BEGIN:VTIMEZONE TZID:/softwarestudio.org/Olson_20011030_5/Europe/Amsterdam X-LIC-LOCATION:Europe/Amsterdam BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:19700329T020000 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=3 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:19701025T030000 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10 END:STANDARD END:VTIMEZONE
Palm synchronisation
If gpilotd crashes on sync'ing, check if the usb file system has been mounted.