software

Opera 9.01 was realeased, also for the Linux platform. Get your distribution package on:
http://www.opera.com/download/?platform=linux

Static precompiled debian packages are not in the List on the opera website but can be found on every mirror.
For example on: http://opera.osmirror.nl/linux/901/final/en/i386/static/opera-static_9.01-20060728.1-qt_en_i386.deb.

Referring to the Changelogs this release mainly is about
fixing the bugs from the 9.0 release. No new features were introduced.

Iptables is strange. Today I made a mistake by adding an IP two times to a DROP chain.

Example:

$ iptables -I FOO -s 192.168.0.7 -j DROP
$ iptables -I FOO -s 192.168.0.7 -j DROP
$ iptables -L
target prot opt source destination
DROP all -- 192.168.0.7 anywhere
DROP all -- 192.168.0.7 anywhere

This is strange, seems like iptables is not checking double entries.
I also noticed that iptables -L will become very slow with double information.

What made me really perplex is:
$ iptables -D FOO -s 192.168.0.7 -j DROP
$ iptables -L
target prot opt source destination
DROP all -- 192.168.0.7 anywhere

So iptables deleted one of the IPs in comparison to my expectation that this will delete both entries.
Bug or Feature?

Two days ago the blogging engine s9y version 1.0 has been released. I did the upgrade now.
Works very nice, just copy the files from the tarball into your blog directory and go to your adminstration interface.

Its really sad that the Etherial project will no longer be available under this name. I think it was a much better name than Wireshark.

... Is a website to collect information about software. Not like freshmeat is doing already.
We have lots of talented people knowing different programming languages available and on the other side alot of people
needing a specific kind of software.

I don't have as much spare time and money as it would need to found such a project. But please if someone has (and I think there are people who have got),
found this project, list needed projects with description and give those os/fs programmers a new hobby.

I released version 2.0.1 of yacpi.
It doesn't have new features but some minor bugfixes etc.

Get it: http://www.ngolde.de/download/yacpi-2.0.1.tar.gz



yacpi (yet another configuration and power interface) is an ncurses based ACPI monitoring program for notebooks. There is also a text-only output so it is possible to include it in scripts.
It displays various ACPI information like battery status, temperature, charging circuits and AC status.
Additionally it displays CPU govenor and current frequency

I really hate it to download a snapshot of a project and then copy the name of the tarball to extract it,

especially if its named like foo-20060118.tar.gz and I have other snapshots in a directory too.

Thats why I died the following quick hack (yes its not perfect especially because of error checking but WFM ; )

#!/bin/sh

URL=$1
FILE=`echo $URL | sed -e 's/.\+\/\(.\+\.tar\.\(gz|bz2\)\)$/\1/' `
wget $URL
TYPE=`file $FILE | cut -f 2 -d " "`
if [ "$TYPE" = "bzip2" ]; then
    tar xvfj $FILE
else
    tar xvfz $FILE
fi

Its really a quick hack, but maybe someoneelse think its useful too.

Its nice to see that some people like the idea ii.
Christian Dietrich started hacking on si, its a Silc client based on ii. Get the source here: http://brokenpipe.de/cgi-bin/viewcvs.cgi/si/.

Alot of people I know don't know vims folding feature.

Remember this will not work with original vi, only if compiled with folding support and
version higher or equal than 6.0.

With folding it is possible to summarize a block of code or other information to a folder
which fits in one line.
To use folding for example mark a few lines in vims visual mode (Esc-shift-V).

Before using folding:

---

#include <stdio.h>
int main (void) {
printf("Hello World\n");
return 0;
}

---

Now press z+f to summ up the marked lines in a folder.

After using folding:

---

#include <stdio.h>

-- 4 Zeilen: int main (void) {----------------------------

---

To open the folder press z+o. If you want to open all folders in a file press z+O.
To delete a folder press z+e to delete all folders press z+E.
The folders will not be written to the file, if you open the file with cat or less the
code will be displayed without any folder.
You can also write files using folders manually.

A folder is just a tag which tells vim to display something as a folder. So it is also possible to write a file with folders.
To mark the start of a folder just use {{{ (for example in a comment of a source file)
and }}} to mark the end of the folder.

If you open the file now in vim again it will not display the folder because you

have to specify the folder method in the file.

As folder methods you can use:
manual manually define folds
indent more indent means a higher fold level
expr specify an expression to define folds
syntax folds defined by syntax highlighting
diff folds for unchanged text
marker folds defined by markers in the text

So in my example I will add vim:foldmethod=marker somewhere in the file and the file will have
all folders when opening it. Vim will add the first line of the folder for the folder description
(int main (void) in the first example).

Important keys (imho) when working with folding:
zf create folder
zd delete folder under cursor
zD delete folder recursive
zE delete all folders in file
zo open folder under curso
zO open folder recursive
zc close folder under cursor
zC same as zc recursive
za open folder if closed, close folder if opened


Vims folding has got many more features which would bloat this blog entry here. I hope
I described the features I am using most, if you want to have an overview about what
is also possible with folding don't hesitate to type :help fold in vim.

I have a bunch of ??? mp3 files where each episode is splitted into two files and my girlfriend definetly wanted to listen to them with audio cds.

Merging them with cat will not work because the id3 tags will be broken.

So I found mp3wrap, did a quick

for i in *; do mp3wrap /tmp/wrap/"$i".mp3 "$i"/*; done

any my girlfriend smiled