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Monday, November 20, 2006
I've just created small Python/Tkinter program to convert values of energies. At the moment you can convert from (to) au, eV, nm and cm-1. Not much, but it is beginning :). Program can be download from mml website.
I wrote a shell script which allow to list files and only files in all of subdirectiories of current directory. I don't know if it useful but it nice piece of shell code:
#!/bin/sh for i in `find $PWD -maxdepth 1 -type d` do (cd $i; echo $i; find -maxdepth 1 -type f| wc -l) done
Saturday, November 18, 2006
I nearly become addicted. To what? To Python Challenge. It is a set of puzzle which can be resolved with Python (you can use other language, but it is design for Python). I don't remember when I have so much fun. It is great think if you what to learn Python or just test your skills. It is my 50th note and I started write this blog 1 year and 3 days ago!
I wrote that Molekel was rebirth and version 4.6 was release. Recently, I found that the project has been moved and alpha version of Molekel 5.0 can be found hear. So, right now we have:
Tuesday, November 14, 2006
I found another interesting blog related to science. This time some physics. You can find there a lot of interesting news: i.e. the info about physics of new NBA ball or fastest waves ever photographed.
Saturday, November 04, 2006
I like bash command. This one is quite long:
for ((i=1;i<36;i++)); do if [ $i -lt 10 ]; then j=0"$i" ; else j="$i" ; fi ; wget --no-check-certificate https://www.linux-magazine.pl/issue/$j/; doneIt could be interesting for someone, because in one line there are loop (C-style) and if command. This command download the contents of all Polish LinuxMagazine issues. I have got most of LM issues, but searching some information thru them are quite boring. So I thinking about making some kind of 'searching machine' because one from LM website is weak. My command once more, but this in more readable form:
for ((i=1;i<36;i++)); \ do \ if [ $i -lt 10 ]; \ then j=0"$i"; \ else j="$i" ; \ fi; \ wget --no-check-certificate https://www.linux-magazine.pl/issue/$j/; \ done
Wednesday, November 01, 2006
My second example of using mencoder: I had the problem with large avi file which didn't fit CD (it had 1.4 gb). I used mencoder to split this file(console rulez ;). Creating of the first part was quite easy (I found the advices here and here).
mencoder -ovc copy -oac copy -ss 0 -endpos 700mb -o movie_part1.avi movie.aviBut there were no info where I should start the second part. I watched the end of the part 1 and manually (eyelly ;) chose the best point to split the movie (for example 1:05:25). This time I could creat two parts.
mencoder -ovc copy -oac copy -endpos 01:05:25 -o movie_part1.avi movie.avi mencoder -ovc copy -oac copy -ss 01:05:25 -o movie_part2.avi movie.avi
I like console. So I'm using it even to manipulate video files ;). My first example of using mencoder: I'm recoding files from my camera (Fuji FinePix 5600/5200). It use two passes technique (it should give smaller out file). I don't know if my options are optimal, I found it somewhere (I don't remember where). The input file is the first argument and output file is second argument of my script.
#!/bin/sh mencoder $1 -ovc lavc -lavcopts \ vcodec=mpeg4:vpass=1:vbitrate=1000:vlelim=-4:vcelim=9:lumi_mask=0.05:dark_mask=0.01 \ -oac copy -o /dev/null mencoder $1 -ovc lavc -lavcopts \ vcodec=mpeg4:mbd=2:trell:vpass=2:vbitrate=2000:vlelim=-4:vcelim=9:lumi_mask=0.05:dark_mask=0.01 \ -oac copy -o $2Sailing through the net (I tried to find the place with mencoder option) I reached Mario Valle website. It seems very interesting. I have to read it careful and write more about it. Right now, I'm adding his blog to my list.