febrero 2010 – Matias Kreder

pack de idioma castellano utf-8 corregido para b2evolution

Posted on 21/02/2010 by Matias

Me tome un rato para corregir el pack de idioma castellano para b2evolution, tenía un problema para tomar los acentos en el tema, por ejemplo podíamos encontrar algo así como “CategorÃas” en vez de “Categorías”, el problema se solucionaba según leí en el foro de b2evolution remplazando en el archivo _global.php los siguientes caracteres:

á =&gt; &amp;aacute; <br /> é =&gt; &amp;eacute; <br /> í =&gt; &amp;iacute; <br /> ó =&gt; &amp;oacute; <br /> ú =&gt; &amp;uacute; <br /> ü =&gt; &amp;uuml; <br /> ñ =&gt; &amp;ntilde; <br /> Á =&gt; &amp;Aacute; <br /> É =&gt; &amp;Eacute; <br /> Í =&gt; &amp;Iacute; <br /> Ó =&gt; &amp;Oacute; <br /> Ú =&gt; &amp;Uacute; <br /> Ü =&gt; &amp;Uuml; <br /> Ñ =&gt; &amp;Ntilde; <br /> ¡(admiración) =&gt; &amp;iexcl; <br /> ¿ =&gt; &amp;iquest; <br /> " =&gt; &amp;quot;

á => &aacute; é => &eacute; í => &iacute; ó => &oacute; ú => &uacute; ü => &uuml; ñ => &ntilde; Á => &Aacute; É => &Eacute; Í => &Iacute; Ó => &Oacute; Ú => &Uacute; Ü => &Uuml; Ñ => &Ntilde; ¡(admiración) => &iexcl; ¿ => &iquest; " => &quot;

Después de modificarlo lo comprimí, pueden descargalo aquí.

How to setup kozumi KTV-01C (chip bt878 rev11)

Posted on 21/02/201002/01/2011 by Matias

I have setup this card with gentoo 2008. In some others distributions like Ubuntu or Fedora, I’m sure it should be easier.

The card that I’m writing about is:

04:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
04:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)

1 2	04:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 04:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)

It works with module bt878

Device Drivers  ---]
[M] Video For Linux
[*]   Enable Video For Linux API 1 compatible Layer
[*]   Video capture adapters  ---]
[M]   BT848 Video For Linux
[*]     DVB/ATSC Support for bt878 based TV cards

Device Drivers ---]

[M] Video For Linux

[*] Enable Video For Linux API 1 compatible Layer

[*] Video capture adapters ---]

[M] BT848 Video For Linux

[*] DVB/ATSC Support for bt878 based TV cards

make && make modules_install

after that we edit /etc/modprobe.conf or /etc/modprobe.d/bttv and we add the following lines:

alias char-major-81 videodev
alias char-major-81-0 bttv
options bttv pll=1 card=120 radio=1 tuner=38 remote=1 bttv_verbose=1 gbuffers=4
options ir_common debug=1

alias char-major-81 videodev

alias char-major-81-0 bttv

options bttv pll=1 card=120 radio=1 tuner=38 remote=1 bttv_verbose=1 gbuffers=4

options ir_common debug=1

Now we can try the card with:

modprobe bttv
modprobe tuner

1 2	modprobe bttv modprobe tuner

We can check if they loaded successfully:

 # dmesg | grep bttv
bttv: driver version 0.9.17 loaded
bttv: using 4 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:04:09.0, irq: 17, latency: 32, mmio: 0xfdaff000
bttv0: using: Conceptronic CONTVFMi [card=120,insmod option]
bttv0: gpio: en=00000000, out=00000000 in=007fc0ff [init]
bttv0: tuner type=38
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: registered device radio0
bttv0: PLL: 28636363 =] 35468950 .. ok
input: bttv IR (card=120) as /class/input/input4
bttv0: PLL can sleep, using XTAL (28636363).

# dmesg | grep bttv

bttv: driver version 0.9.17 loaded

bttv: using 4 buffers with 2080k (520 pages) each for capture

bttv: Bt8xx card found (0).

bttv0: Bt878 (rev 17) at 0000:04:09.0, irq: 17, latency: 32, mmio: 0xfdaff000

bttv0: using: Conceptronic CONTVFMi [card=120,insmod option]

bttv0: gpio: en=00000000, out=00000000 in=007fc0ff [init]

bttv0: tuner type=38

bttv0: i2c: checking for MSP34xx @ 0x80... not found

bttv0: i2c: checking for TDA9875 @ 0xb0... not found

bttv0: i2c: checking for TDA7432 @ 0x8a... not found

bttv0: registered device video0

bttv0: registered device vbi0

bttv0: registered device radio0

bttv0: PLL: 28636363 =] 35468950 .. ok

input: bttv IR (card=120) as /class/input/input4

bttv0: PLL can sleep, using XTAL (28636363).

# dmesg | grep tuner
bttv0: tuner type=38
tuner’ 0-0060: chip found @ 0xc0 (bt878 #0 [sw])
tuner-simple 0-0060: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3))

Install tvtime:

emerge tvtime

1	emerge tvtime

You should set it to the norm of you country, I set it to PAL-Nc:

$ tvtime-configure  -n PAL-Nc
$ tvtime-scanner

1 2	$ tvtime-configure -n PAL-Nc $ tvtime-scanner

And if everything went well, we should see something like this:

Scanning using TV standard PAL-NC.
Scanning from  44.00 MHz to 958.00 MHz.
Found a channel at  54.50 MHz (52.50 - 56.25 MHz), adding to channel list.
Found a channel at  66.50 MHz (64.25 - 68.50 MHz), adding to channel list.
Checking  79.00 MHz:  - No signal

Scanning using TV standard PAL-NC.

Scanning from 44.00 MHz to 958.00 MHz.

Found a channel at 54.50 MHz (52.50 - 56.25 MHz), adding to channel list.

Found a channel at 66.50 MHz (64.25 - 68.50 MHz), adding to channel list.

Checking 79.00 MHz: - No signal

Last, but not least, we have to add to /etc/modules.autoload.d/kernel-2.6 tuner:

echo "tuner" ]] /etc/modules.autoload.d/kernel-2.6

1	echo "tuner" ]] /etc/modules.autoload.d/kernel-2.6

Remote Control

In order to setup the remote control you have to edit a few lines in the kernel module. We are going to edit $source/drivers/media/common/ir-keymaps.c:

Anf where it says IR_KEYTAB_TYPE we remove all the keys and we leave it like this:

IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {
[ 0x00 ] = KEY_0,
[ 0x01 ] = KEY_1,
[ 0x02 ] = KEY_2,
[ 0x03 ] = KEY_3,
[ 0x04 ] = KEY_4,
[ 0x05 ] = KEY_5,
[ 0x06 ] = KEY_6,
[ 0x07 ] = KEY_7,
[ 0x08 ] = KEY_8,
[ 0x09 ] = KEY_9,
[ 0x1c ] = KEY_RADIO,          /* FM Radio */
[ 0x0a ] = KEY_BACKSPACE,      /* Recall */
[ 0x12 ] = KEY_ESC,            /* POWER */
[ 0x18 ] = KEY_LEFT,           /* VOL- */
[ 0x0c ] = KEY_RIGHT,          /* VOL+ */
[ 0x16 ] = KEY_ENTER,          /* OK */
[ 0x17 ] = KEY_D,              /* Plus */
[ 0x10 ] = KEY_F,              /* Mode */
[ 0x0b ] = KEY_UP,             /* CH+ */
[ 0x0b ] = KEY_UP,             /* CH+ */
[ 0x15 ] = KEY_DOWN,           /* CH- */
[ 0x14 ] = KEY_H,              /* OSD */
[ 0x13 ] = KEY_MUTE,           /* Mute */
[ 0x0f ] = KEY_BACKSPACE,      /* Prev */
[ 0x0e ] = KEY_STOP,           /* Stop */
[ 0x1f ] = KEY_PLAY,           /* Play */
[ 0x1e ] = KEY_PAUSE,          /* Pause */
[ 0x1d ] = KEY_RECORD,         /* Record */
[ 0x1a ] = KEY_F7,             /* Next */
[ 0x0f ] = KEY_A,              /*  */
[ 0x1b ] = KEY_F5,             /* Time Shift */
[ 0x19 ] = KEY_S,              /* Snapshot */
[ 0x0f ] = KEY_F6,             /* Prev */
[ 0x0d ] = KEY_E,              /* Stereo */
[ 0x11 ] = KEY_I               /* Source */
};

IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {

[ 0x00 ] = KEY_0,

[ 0x01 ] = KEY_1,

[ 0x02 ] = KEY_2,

[ 0x03 ] = KEY_3,

[ 0x04 ] = KEY_4,

[ 0x05 ] = KEY_5,

[ 0x06 ] = KEY_6,

[ 0x07 ] = KEY_7,

[ 0x08 ] = KEY_8,

[ 0x09 ] = KEY_9,

[ 0x1c ] = KEY_RADIO, /* FM Radio */

[ 0x0a ] = KEY_BACKSPACE, /* Recall */

[ 0x12 ] = KEY_ESC, /* POWER */

[ 0x18 ] = KEY_LEFT, /* VOL- */

[ 0x0c ] = KEY_RIGHT, /* VOL+ */

[ 0x16 ] = KEY_ENTER, /* OK */

[ 0x17 ] = KEY_D, /* Plus */

[ 0x10 ] = KEY_F, /* Mode */

[ 0x0b ] = KEY_UP, /* CH+ */

[ 0x15 ] = KEY_DOWN, /* CH- */

[ 0x14 ] = KEY_H, /* OSD */

[ 0x13 ] = KEY_MUTE, /* Mute */

[ 0x0f ] = KEY_BACKSPACE, /* Prev */

[ 0x0e ] = KEY_STOP, /* Stop */

[ 0x1f ] = KEY_PLAY, /* Play */

[ 0x1e ] = KEY_PAUSE, /* Pause */

[ 0x1d ] = KEY_RECORD, /* Record */

[ 0x1a ] = KEY_F7, /* Next */

[ 0x0f ] = KEY_A, /* */

[ 0x1b ] = KEY_F5, /* Time Shift */

[ 0x19 ] = KEY_S, /* Snapshot */

[ 0x0f ] = KEY_F6, /* Prev */

[ 0x0d ] = KEY_E, /* Stereo */

[ 0x11 ] = KEY_I /* Source */

};

EXPORT_SYMBOL_GPL(ir_codes_pixelview);

Then, in the kernel source directory, we run:

make && make modules_install y listo.

I got some hints from:

http://www.linuxforums.org/forum/peripherals-hardware/91984-remote-controller-bt878-kozumi-ktv-01c.html

Como configurar placa capturadora kozumi KTV-01C (con chip bt878 rev11)

Posted on 21/02/2010 by Matias

Me llevo un par de días asi que lo comparto con ustedes, ya que le puede beneficiar a alguien mas

En este caso yo lo configure con gentoo 2008, quizás haya distribuciones, en las que les sea aun mas fácil configurar este dispositivo.

La placa en cuestión es:

04:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
04:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)

1 2	04:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 04:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)

Que funciona con el modulo bt878

  Device Drivers  ---]    
   [M] Video For Linux        
   [*]   Enable Video For Linux API 1 compatible Layer       
   [*]   Video capture adapters  ---]          
      [M]   BT848 Video For Linux                    
      [*]     DVB/ATSC Support for bt878 based TV cards   

make &amp;&amp; make modules_install

Device Drivers ---]

[M] Video For Linux

[*] Enable Video For Linux API 1 compatible Layer

[*] Video capture adapters ---]

[M] BT848 Video For Linux

[*] DVB/ATSC Support for bt878 based TV cards

make && make modules_install

Editamos /etc/modprobe.conf o /etc/modprobe.d/bttv y agregamos los datos del modulo:

alias char-major-81 videodev
alias char-major-81-0 bttv
options bttv pll=1 card=120 radio=1 tuner=38 remote=1 bttv_verbose=1 gbuffers=4
options ir_common debug=1

alias char-major-81 videodev

alias char-major-81-0 bttv

options bttv pll=1 card=120 radio=1 tuner=38 remote=1 bttv_verbose=1 gbuffers=4

options ir_common debug=1

Ahora podemos probar con:

modprobe bttv
modprobe tuner

1 2	modprobe bttv modprobe tuner

Podemos verificar que los modulos esten arriba:

 # dmesg | grep bttv
bttv: driver version 0.9.17 loaded
bttv: using 4 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:04:09.0, irq: 17, latency: 32, mmio: 0xfdaff000
bttv0: using: Conceptronic CONTVFMi [card=120,insmod option]
bttv0: gpio: en=00000000, out=00000000 in=007fc0ff [init]
bttv0: tuner type=38
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: registered device radio0
bttv0: PLL: 28636363 =] 35468950 .. ok
input: bttv IR (card=120) as /class/input/input4
bttv0: PLL can sleep, using XTAL (28636363).

# dmesg | grep tuner
bttv0: tuner type=38
tuner' 0-0060: chip found @ 0xc0 (bt878 #0 [sw])
tuner-simple 0-0060: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3))

# dmesg | grep bttv

bttv: driver version 0.9.17 loaded

bttv: using 4 buffers with 2080k (520 pages) each for capture

bttv: Bt8xx card found (0).

bttv0: Bt878 (rev 17) at 0000:04:09.0, irq: 17, latency: 32, mmio: 0xfdaff000

bttv0: using: Conceptronic CONTVFMi [card=120,insmod option]

bttv0: gpio: en=00000000, out=00000000 in=007fc0ff [init]

bttv0: tuner type=38

bttv0: i2c: checking for MSP34xx @ 0x80... not found

bttv0: i2c: checking for TDA9875 @ 0xb0... not found

bttv0: i2c: checking for TDA7432 @ 0x8a... not found

bttv0: registered device video0

bttv0: registered device vbi0

bttv0: registered device radio0

bttv0: PLL: 28636363 =] 35468950 .. ok

input: bttv IR (card=120) as /class/input/input4

bttv0: PLL can sleep, using XTAL (28636363).

# dmesg | grep tuner

bttv0: tuner type=38

tuner' 0-0060: chip found @ 0xc0 (bt878 #0 [sw])

tuner-simple 0-0060: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3))

Instalamos tvtime:

emerge tvtime

1	emerge tvtime

configuramos la norma PAl-Nc para nuestro usuario:

$ tvtime-configure  -n PAL-Nc
$ tvtime-scanner

1 2	$ tvtime-configure -n PAL-Nc $ tvtime-scanner

Y si todo salio bien, deberíamos ver una salida como esta:

Scanning using TV standard PAL-NC.
Scanning from  44.00 MHz to 958.00 MHz.
Found a channel at  54.50 MHz (52.50 - 56.25 MHz), adding to channel list.
Found a channel at  66.50 MHz (64.25 - 68.50 MHz), adding to channel list.
Checking  79.00 MHz:  - No signal

Scanning using TV standard PAL-NC.

Scanning from 44.00 MHz to 958.00 MHz.

Found a channel at 54.50 MHz (52.50 - 56.25 MHz), adding to channel list.

Found a channel at 66.50 MHz (64.25 - 68.50 MHz), adding to channel list.

Checking 79.00 MHz: - No signal

Por ultimo agregamos a /etc/modules.autoload.d/kernel-2.6 tuner:

echo "tuner" ]] /etc/modules.autoload.d/kernel-2.6

1	echo "tuner" ]] /etc/modules.autoload.d/kernel-2.6

Y ya esta, para configurar el control remoto, hay que editar el mapeo de las teclas dentro del modulo del kernel compilado (haga una copia de seguridad de este antes de editar el modulo):

editamos
$source/drivers/media/common/ir-keymaps.c:

Y donde esta definido IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE]:

borramos todas las keys y lo dejamos asi:

IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {
        [ 0x00 ] = KEY_0,
        [ 0x01 ] = KEY_1,
        [ 0x02 ] = KEY_2,
        [ 0x03 ] = KEY_3,
        [ 0x04 ] = KEY_4,
        [ 0x05 ] = KEY_5,
        [ 0x06 ] = KEY_6,
        [ 0x07 ] = KEY_7,
        [ 0x08 ] = KEY_8,
        [ 0x09 ] = KEY_9,
        [ 0x1c ] = KEY_RADIO,          /* FM Radio */
        [ 0x0a ] = KEY_BACKSPACE,      /* Recall */
        [ 0x12 ] = KEY_ESC,            /* POWER */
        [ 0x18 ] = KEY_LEFT,           /* VOL- */
        [ 0x0c ] = KEY_RIGHT,          /* VOL+ */
        [ 0x16 ] = KEY_ENTER,          /* OK */
        [ 0x17 ] = KEY_D,              /* Plus */
        [ 0x10 ] = KEY_F,              /* Mode */
        [ 0x0b ] = KEY_UP,             /* CH+ */
        [ 0x0b ] = KEY_UP,             /* CH+ */
        [ 0x15 ] = KEY_DOWN,           /* CH- */
        [ 0x14 ] = KEY_H,              /* OSD */
        [ 0x13 ] = KEY_MUTE,           /* Mute */
        [ 0x0f ] = KEY_BACKSPACE,      /* Prev */
        [ 0x0e ] = KEY_STOP,           /* Stop */
        [ 0x1f ] = KEY_PLAY,           /* Play */
        [ 0x1e ] = KEY_PAUSE,          /* Pause */
        [ 0x1d ] = KEY_RECORD,         /* Record */
        [ 0x1a ] = KEY_F7,             /* Next */
        [ 0x0f ] = KEY_A,              /*  */
        [ 0x1b ] = KEY_F5,             /* Time Shift */
        [ 0x19 ] = KEY_S,              /* Snapshot */
        [ 0x0f ] = KEY_F6,             /* Prev */
        [ 0x0d ] = KEY_E,              /* Stereo */
        [ 0x11 ] = KEY_I               /* Source */
};

EXPORT_SYMBOL_GPL(ir_codes_pixelview);

IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {

[ 0x00 ] = KEY_0,

[ 0x01 ] = KEY_1,

[ 0x02 ] = KEY_2,

[ 0x03 ] = KEY_3,

[ 0x04 ] = KEY_4,

[ 0x05 ] = KEY_5,

[ 0x06 ] = KEY_6,

[ 0x07 ] = KEY_7,

[ 0x08 ] = KEY_8,

[ 0x09 ] = KEY_9,

[ 0x1c ] = KEY_RADIO, /* FM Radio */

[ 0x0a ] = KEY_BACKSPACE, /* Recall */

[ 0x12 ] = KEY_ESC, /* POWER */

[ 0x18 ] = KEY_LEFT, /* VOL- */

[ 0x0c ] = KEY_RIGHT, /* VOL+ */

[ 0x16 ] = KEY_ENTER, /* OK */

[ 0x17 ] = KEY_D, /* Plus */

[ 0x10 ] = KEY_F, /* Mode */

[ 0x0b ] = KEY_UP, /* CH+ */

[ 0x15 ] = KEY_DOWN, /* CH- */

[ 0x14 ] = KEY_H, /* OSD */

[ 0x13 ] = KEY_MUTE, /* Mute */

[ 0x0f ] = KEY_BACKSPACE, /* Prev */

[ 0x0e ] = KEY_STOP, /* Stop */

[ 0x1f ] = KEY_PLAY, /* Play */

[ 0x1e ] = KEY_PAUSE, /* Pause */

[ 0x1d ] = KEY_RECORD, /* Record */

[ 0x1a ] = KEY_F7, /* Next */

[ 0x0f ] = KEY_A, /* */

[ 0x1b ] = KEY_F5, /* Time Shift */

[ 0x19 ] = KEY_S, /* Snapshot */

[ 0x0f ] = KEY_F6, /* Prev */

[ 0x0d ] = KEY_E, /* Stereo */

[ 0x11 ] = KEY_I /* Source */

};

EXPORT_SYMBOL_GPL(ir_codes_pixelview);

luego en la raiz del

 kernel ejecutamos nuevamente:

make &amp;&amp; make modules_install y listo.

kernel ejecutamos nuevamente:

make && make modules_install y listo.

Eso fue todo.

Ya pueden usar su placa con cualquier programa de captura de video, pueden usar Tvtime, ya que sabemos que detecto los canales.

Un poco de ayuda de:

http://www.linuxforums.org/forum/peripherals-hardware/91984-remote-controller-bt878-kozumi-ktv-01c.html

haciendo que nuestra pc hable con espeakc

Posted on 16/02/2010 by Matias

espeak es un software sintetizador de voz con el podemos hacer cosas muy interesantes, para instalarlo en fedora tendremos que ejecutar:

yum install espeak

1	yum install espeak

Una vez instalado podemos hacer cosas divertidas como contar botellas de cerveza:

echo {1..199}" bottles of beer on the wall, cold bottle of beer, take one down, pass it around, one less bottle of beer on the wall,, " | espeak -v english -s 140

1	echo {1..199}" bottles of beer on the wall, cold bottle of beer, take one down, pass it around, one less bottle of beer on the wall,, " \| espeak -v english -s 140

Contar elefantes:

echo {1..199}" elefantes se balanceaban sobre la tela de una araña, como veían que rustían fueron a buscar a otro elefante,, " | espeak -v spanish -s 140

1	echo {1..199}" elefantes se balanceaban sobre la tela de una araña, como veían que rustían fueron a buscar a otro elefante,, " \| espeak -v spanish -s 140

Nos lea una frase de la fortuna:

fortune | espeak -v english -s 140

1	fortune \| espeak -v english -s 140

Podemos hacer por ejemplo que espeak nos lea los logs:

tail -f -n1 /var/log/messages | espeak -v english -s 150

1	tail -f -n1 /var/log/messages \| espeak -v english -s 150

También jugando con awk, podemos por ejemplo filtrar el log de irssi, para que espeak interprete todas las lineas que alguien en el IRC escribe:

tail -n 1 -f #channel.log | awk -F '&gt;' '/nick_a_interpretar&gt;/{print $2 | "tee file"}' &amp;<br />tail -f -n1 file | espeak -v spanish

1	tail -n 1 -f #channel.log \| awk -F '>' '/nick_a_interpretar>/{print $2 \| "tee file"}' &<br />tail -f -n1 file \| espeak -v spanish

basándose en estos ejemplos hay un gran numero de cosas que se pueden hacer. Enjoy!

obtener la temperatura de Buenos Aires desde la linea de comandos

Posted on 14/02/2010 by Matias

Con este comando podemos obtener la temperatura de Buenos Aires desde la linea de comandos de cualquier *nix conectado a internet.

echo "Temperatura $(curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires" | sed 's|.*&lt;temp_c data="([^"]*)"/&gt;.*|1|') grados en Buenos Aires

1	echo "Temperatura $(curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires" \| sed 's\|.<temp_c data="([^"])"/>.*\|1\|') grados en Buenos Aires

”

desarmando el comando de la salida de

curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires"

1	curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires"

Obtenemos el siguiente XML:

&lt;xml_api_reply version="1"&gt;<br />&#8722;<br />&lt;weather module_id="0" tab_id="0" mobile_row="0" mobile_zipped="1" row="0" section="0"&gt;<br />&#8722;<br />&lt;forecast_information&gt;<br />&lt;city data="Buenos Aires"/&gt;<br />&lt;postal_code data="Buenos Aires"/&gt;<br />&lt;latitude_e6 data=""/&gt;<br />&lt;longitude_e6 data=""/&gt;<br />&lt;forecast_date data="2010-02-12"/&gt;<br />&lt;current_date_time data="2010-02-12 20:00:00 +0000"/&gt;<br />&lt;unit_system data="US"/&gt;<br />&lt;/forecast_information&gt;<br />&#8722;<br />&lt;current_conditions&gt;<br />&lt;condition data="Clear"/&gt;<br />&lt;temp_f data="88"/&gt;<br />&lt;temp_c data="31"/&gt;<br />&lt;humidity data="Humidity: 52%"/&gt;<br />&lt;icon data="/ig/images/weather/sunny.gif"/&gt;<br />&lt;wind_condition data="Wind: NE at 8 mph"/&gt;<br />&lt;/current_conditions&gt;<br />&#8722;<br />&lt;forecast_conditions&gt;<br />&lt;day_of_week data="Fri"/&gt;<br />&lt;low data="64"/&gt;<br />&lt;high data="86"/&gt;<br />&lt;icon data="/ig/images/weather/sunny.gif"/&gt;<br />&lt;condition data="Clear"/&gt;<br />&lt;/forecast_conditions&gt;<br />&#8722;<br />&lt;forecast_conditions&gt;<br />&lt;day_of_week data="Sat"/&gt;<br />&lt;low data="60"/&gt;<br />&lt;high data="87"/&gt;<br />&lt;icon data="/ig/images/weather/sunny.gif"/&gt;<br />&lt;condition data="Clear"/&gt;<br />&lt;/forecast_conditions&gt;<br />&#8722;<br />&lt;forecast_conditions&gt;<br />&lt;day_of_week data="Sun"/&gt;<br />&lt;low data="57"/&gt;<br />&lt;high data="73"/&gt;<br />&lt;icon data="/ig/images/weather/chance_of_rain.gif"/&gt;<br />&lt;condition data="Chance of Rain"/&gt;<br />&lt;/forecast_conditions&gt;<br />&#8722;<br />&lt;forecast_conditions&gt;<br />&lt;day_of_week data="Mon"/&gt;<br />&lt;low data="57"/&gt;<br />&lt;high data="73"/&gt;<br />&lt;icon data="/ig/images/weather/chance_of_rain.gif"/&gt;<br />&lt;condition data="Chance of Rain"/&gt;<br />&lt;/forecast_conditions&gt;<br />&lt;/weather&gt;<br />&lt;/xml_api_reply&gt;

<xml_api_reply version="1"> − <weather module_id="0" tab_id="0" mobile_row="0" mobile_zipped="1" row="0" section="0"> − <forecast_information> <city data="Buenos Aires"/> <postal_code data="Buenos Aires"/> <latitude_e6 data=""/> <longitude_e6 data=""/> <forecast_date data="2010-02-12"/> <current_date_time data="2010-02-12 20:00:00 +0000"/> <unit_system data="US"/> </forecast_information> − <current_conditions> <condition data="Clear"/> <temp_f data="88"/> <temp_c data="31"/> <humidity data="Humidity: 52%"/> <icon data="/ig/images/weather/sunny.gif"/> <wind_condition data="Wind: NE at 8 mph"/> </current_conditions> − <forecast_conditions> <day_of_week data="Fri"/> <low data="64"/> <high data="86"/> <icon data="/ig/images/weather/sunny.gif"/> <condition data="Clear"/> </forecast_conditions> − <forecast_conditions> <day_of_week data="Sat"/> <low data="60"/> <high data="87"/> <icon data="/ig/images/weather/sunny.gif"/> <condition data="Clear"/> </forecast_conditions> − <forecast_conditions> <day_of_week data="Sun"/> <low data="57"/> <high data="73"/> <icon data="/ig/images/weather/chance_of_rain.gif"/> <condition data="Chance of Rain"/> </forecast_conditions> − <forecast_conditions> <day_of_week data="Mon"/> <low data="57"/> <high data="73"/> <icon data="/ig/images/weather/chance_of_rain.gif"/> <condition data="Chance of Rain"/> </forecast_conditions> </weather> </xml_api_reply>

Para este caso lo que buscamos es esta parte,

&lt;temp_c data="31"/&gt;

1	<temp_c data="31"/>

$ curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires" | sed 's|.*&lt;temp_c data="([^"]*)"/&gt;.*|1|'<br />31

1	$ curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires" \| sed 's\|.<temp_c data="([^"])"/>.*\|1\|'<br />31

el sed nos sirve para limpiar de ahi solamente el 31, y finalmente el echo arma la frase mas linda.

$ echo "Temperatura $(curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires" | sed 's|.*&lt;temp_c data="([^"]*)"/&gt;.*|1|') grados en Buenos Aires"<br />Temperatura 31 grados en Buenos Aires

1	$ echo "Temperatura $(curl -s "http://www.google.com/ig/api?weather=Buenos%20Aires" \| sed 's\|.<temp_c data="([^"])"/>.*\|1\|') grados en Buenos Aires"<br />Temperatura 31 grados en Buenos Aires