Joaquin Peralta

Come back

jperalta — Mon, 25 Jan 2010 15:04:49 +0000

Today i say .. well i need return to the best blog site .. wordpress .. so this is my first post after many time.

I hope, post a interesteng news or some similar early.

Generate a passoword in comand line

jperalta — Wed, 19 Mar 2008 16:42:05 +0000

Generate a password its easy, just open a terminal and using the maximal entropy as been possible (move mouse, open new windows, etc.), type :
head -c 16 /dev/random | mmencode

This is all!!, the lenght of the password is 16 you can choice diferent sizes for the password.

Flash in firefox for Ubuntu 7.10

jperalta — Sun, 03 Feb 2008 01:09:11 +0000

I’m install Ubuntu 7.10 Today and when i start firefox, the flash not work properly, the correct form to solve this is :

1.- In Firefox menu, go Tools -> Aggregate and disable ubufox.

2.-Restart Firefox and go to webpage with flash (for example www.emol.cl)

3.-Install the flash plugin, and enjoy!!

You can enable ubufux again if you want.

JP.

Llego el 2008

jperalta — Mon, 21 Jan 2008 00:13:42 +0000

Así es, un poco tarde, pero no podía dejar de escribir que se nos viene un nuevo año, esperemos que sea mucho mejor que el que se fué, hasta el momento ha sido así, hay mucha pega, por lo que no me puedo quejar.

Por ahora solo hay trabajo, lpmd, simulaciones, preparando el equipo para el comienzo del año … en fin.

Espero postear ahora si de manera más seguida ya que me desaparecí por mucho tiempo, espero ahora tener algo más de tiempo para poder escribir algunas cosillas más.

salu2

My .vimrc file

jperalta — Mon, 20 Aug 2007 22:39:33 +0000

Hi in this ocation i want show my .vimrc file this is the configuration file for edit my sources-code and anothers text files. The advantages of my vimrc file (almost for me) are :

one space indent for c and c++ codes.
my favorite colors
tab navigation like firefox
- Ctrl-t make a new tab
- Ctrl-p and Ctrl-n go to previous or next tab respectively.

My vimrc file its :
-----------------------------------------------------------------------------

" All system-wide defaults are set in $VIMRUNTIME/debian.vim (usually just " /usr/share/vim/vimcurrent/debian.vim) and sourced by the call to :runtime " you can find below. If you wish to change any of those settings, you should " do it in this file (/etc/vim/vimrc), since debian.vim will be overwritten " everytime an upgrade of the vim packages is performed. It is recommended to " make changes after sourcing debian.vim since it alters the value of the " 'compatible' option.
" This line should not be removed as it ensures that various options are " properly set to work with the Vim-related packages available in Debian. runtime! debian.vim
" Uncomment the next line to make Vim more Vi-compatible " NOTE: debian.vim sets 'nocompatible'. Setting 'compatible' changes numerous " options, so any other options should be set AFTER setting 'compatible'. "set compatible
" Vim5 and later versions support syntax highlighting. Uncommenting the next " line enables syntax highlighting by default. syntax on
" If using a dark background within the editing area and syntax highlighting " turn on this option as well "set background=dark "if (&term == "iterm") || (&term == "putty") " set background=dark "endif highlight Normal ctermbg=white ctermfg=black
" Uncomment the following to have Vim jump to the last position when " reopening a file if has("autocmd") au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$") \| exe "normal g'\"" | endif endif
" Uncomment the following to have Vim load indentation rules according to the " detected filetype. Per default Debian Vim only load filetype specific " plugins. "if has("autocmd") " filetype indent on "endif
" The following are commented out as they cause vim to behave a lot " differently from regular Vi. They are highly recommended though. set cindent sw=1 " Set for C programs "set showcmd " Show (partial) command in status line. "set showmatch " Show matching brackets. "set ignorecase " Do case insensitive matching "set smartcase " Do smart case matching "set incsearch " Incremental search "set autowrite " Automatically save before commands like :next and :make "set hidden " Hide buffers when they are abandoned "set mouse=a " Enable mouse usage (all modes) in terminals
" Source a global configuration file if available " XXX Deprecated, please move your changes here in /etc/vim/vimrc if filereadable("/etc/vim/vimrc.local") source /etc/vim/vimrc.local endif
" tab navigation like firefox :nmap :tabprevious :nmap :tabnext ":map :tabprevious ":map :tabnext ":imap :tabpreviousi ":imap :tabnexti :nmap :tabnew ":imap :tabnew

———————————————————————————————————————————–

Note that the ” character is a comment line

JP.

En Desarrollo.

jperalta — Sun, 12 Aug 2007 22:33:01 +0000

Por ahora no he tenido mucho tiempo para postear cosas nuevas, ya que he estado trabajando bastante, tambien he estado aportando en el desarrollo de un nuevo codigo de dinamica molecular (LPMD). Junto con SD y CL( hppt://www.gnm.cl/~sdavis y http://claudialc.blogspot.com).

El problema es que no he podido retomar post nuevos, pero espeo que pronto tenga algo mas de tiempo para postear algo mejor, o quizas incluso informar acerca de una version oficial de LPMD.

Salu2

Put google calendar in gnome calendar.

jperalta — Fri, 13 Jul 2007 17:57:15 +0000

First, go to google calendar web page and see in the preferences your ‘ical’ private address, has here :

Now with this URL we can do in a terminal :

locate evolution-webcal;

and locate the evolution-webcal command and run with full PATH with :

/usr/lib/evolution-webcal/evolution-webcal $URL
with $URL the private ical direction of your calendar.

This is all.

Sorry for a very long time without post, but i come back

Pin8′s Return.

jperalta — Fri, 11 May 2007 14:53:59 +0000

Realmente habra muerto, o se infiltro en alguna comunidad mapuche?

Fast plot from bash.

jperalta — Fri, 04 May 2007 17:16:33 +0000

Usually i need make tentative graphics of a data set, and this require use gnuplot, with command and others things, for this reason i make a little script for plot directly from the bash with arguments (file and options) using gnuplot (you need gnuplot installed in your system).

For example for plot a simple file with data (as here). a fast plot is made using :

xplot example.dat

For a more complex file as here, you can plot using :

xplot freefall.dat u 1:2 w lp
The script for plot from the bash its here :

#!/bin/sh TMP="/tmp/gnuplot.tmp" ############################################################################ if [ $# != 0 ]; then echo "set title \"Xplot Fast Plot with gnuplot\" ." > $TMP echo "set xlabel \"x axes\"" >> $TMP echo "set ylabel \"y axez\"" >> $TMP echo -n "plot \"$1\" " >> $TMP for i in $@ do if [ $i != $1 ];then echo -n "$i " >> $TMP fi done echo "">>$TMP gnuplot -persist $TMP rm $TMP else echo "Please use xplot to plot" exit fi

Now you can put this file in /usr/local/bin/ (with xplot or another name) and give execution permissions with :

chmod 755 /usr/local/bin xplot

Now, any user can run the xplot script.

JP.

Encoding text files with vim.

jperalta — Tue, 01 May 2007 20:04:58 +0000

Vim (vi improved) its a great text editor, used principally for programmers and others. The last days i want have a file with my passwords, because i use a lot of different password for each utility. For this reason i make a simple text file with this passwords, however i want maintain this passwords in secret, for this reason i use vim.

For example, i have a file with my password called ‘password.key’, the first time (blank file) i open this using :

vim -x password.key

after i put a password for this file (twice). And write in this file as a simple and normal file.

The next time that i want edit or see this file, i use :

vim password.key

and vim, solicit the password for edit this file. This is a god form of maintain my passwords in a secure file.

JP.