curl code

Finding your WAN IP address

My server sits behind a NAT router, so finding out my public IP address is a non-trivial task. I can use curl to poll checkip.dyndns.org for my current address:

curl -s checkip.dyndns.org

The current IP check returns the information in this format: <html><head><title>Current IP Check</title></head><body>Current IP Address: 216.239.39.99</body></html>

Using cut, I can extract just the information that I need:

curl -s checkip.dyndns.org|cut -d ":" -f2|cut -d "<" -f1

That produces something a bit more readable: 216.239.39.99

-------------------------
This article snippet was copied from My sysadmin toolbox [linux.com] while I was googling for 'apt-cache search dyndns'.

to shell curl ip cut whatismyip dyndns wan fetch by jrobertson on Apr 11, 2008 1 Comments

Twitter and Jaiku from the command line

The following instructions make it easy to post to Twitter and Jaiku from the command line. The instructions were copied from the article "Ubuntu Unleashed: Howto Twitter From the Command Line in Ubuntu!" [ubuntu-unleashed.com] and modified to post via Rorbuilder's ProjectX API.

sudo apt-get install curl

sudo gedit /usr/bin/jaitwit

Now Paste this in gEdit and simply replace "YourUsername" with your username and "YourPassword" with your twitter passwd, then replace the Jaiku variables (YourUsername, YourPassword, YourCity, YourAccessKey) and ctrl-s to save, then alt-F4 to exit!

curl http://rorbuilder.info/api/projectx.cgi?xml_project=%3Cproject%20name=%22micro_blog%22%3E%3Cmethods%3E%3Cmethod%20name=%22post2jaiku%22%3E%3Cparams%3E%3Cparam%20var=%22user%22%20val=%22YourUsername%22/%3E%3Cparam%20var=%22msg%22%20val=%22`echo $@|tr ' ' '+'`%22/%3E%3Cparam%20var=%22location%22%20val=%22YourCity%22/%3E%3Cparam%20var=%22apikey%22%20val=%22YourAccessKey%22/%3E%3C/params%3E%3C/method%3E%3Cmethod%20name=%22post2twitter%22%3E%3Cparams%3E%3Cparam%20var=%22user%22%20val=%22YourUsername%22/%3E%3Cparam%20var=%22msg%22%20val=%22`echo $@|tr ' ' '+'`%22/%3E%3Cparam%20var=%22password%22%20val=%22YourPassword%22/%3E%3C/params%3E%3C/method%3E%3C/methods%3E%3C/project%3E -o /dev/null
echo Message Sent!

Then chmod for exec privileges:

chmod +x /usr/bin/jaitwit

Then from the CLI type jaitwit followed by your message.

jaitwit "message here without the quotes"

to linux shell curl command line ubuntu twitter jaiku projectx gedit by jrobertson on Mar 21, 2008

FTPS upload a file from Ruby using Curl command line

Yes, this is lame, but I didn't have much luck with Ruby libraries, so this is what I came up with.

`curl -k --ftp-ssl -3 -T#{path} -u#{FTP_USER}:#{FTP_PASS} #{FTP_HOST}`

-k forces the connection even if the cert looks bad
-3 turns on SSLv3
-T file to upload
-u user:password

to ruby curl ftp upload ftps by timmorgan on Nov 20, 2007

Test Trackback using cURL

I've Googled this about 20 times - documenting it here for convenience.

curl -d url=TRACKBACK_URL -d title=TRACKBACK_TITLE -d blog_name=TRACKBACK_BLOG_NAME -d excerpt=TRACKBACK_EXCERPT URL

A correct response:

<?xml version="1.0" encoding="utf-8"?>
<response>
<error>0</error>
</response>

to curl blog trackback by jnewland on Sep 13, 2007

Twitter bot weatherlisbon

This little bash script shows how to use curl, grep, tail, sed and perl one-liners in order to compose a bleeding-edge twitter bot.
This one returns daily weather forecasts for Lisbon city based on the BBC weather forecast rss feed.

#! /bin/sh

#Goto here
here=/home/guillaume/Personal
cd $here

#BBC Lisbon weather id
id=0048

#BBC weather RSS feed address
feed="http://feeds.bbc.co.uk/weather/feeds/rss/5day/world/${id}.xml"

#City
city=lisbon

#temporary file
file="weather${city}"

#Weather twitter bot
twitbot=weatherlisbon:*******

#Timestamp the log file
echo .>> $file.log
date >> $file.log

#Read the RSS feed and filter it
curl $feed | grep 'title' | tail -n 1 | perl -wlne'm/title>(.*)<\/title/i && print $1' | sed -e "s/&#xB0;//g" > $file.txt

#Read the forecast into a weather variable
read weather < $file.txt

#Twit the weather variable away
curl --basic --user $twitbot --data status="$weather" http://twitter.com/statuses/update.xml >> $file.log

to rss bash perl curl sed grep pipes one-liner fork twitter pipe bot tail piping redirecting by griflet on Jun 18, 2007

cURL Download

// function to dowload a $remote file and store as $local file, using curl

function curl_download($remote, $local)	{
	$cp = curl_init($remote);
	$fp = fopen($local, "w");
	
	curl_setopt($cp, CURLOPT_FILE, $fp);
	curl_setopt($cp, CURLOPT_HEADER, 0);
	
	curl_exec($cp);
	curl_close($cp);
	fclose($fp);	

}

to php download curl by damonp on Apr 27, 2007

REST curl helper

// A small bash script that wraps around curl to help more easily test RESTful sites.

#!/bin/bash
AUTH="user:password"
BASE="http://localhost:3000"
METHOD=$1
DEST="$BASE$2"
XML=$3

# make sure args were passed
if [ $# -eq 0 ]; then
        echo "usage: ./`basename $0` HTTP-METHOD DESTINATION_URI [XML]"
        echo "example: ./`basename $0` POST "/accounts" \"<account><name>ed</name><email>ed@ed.com</email></account>\""
        exit 1
fi

# execute CURL call
curl -H 'Accept: application/xml' -H 'Content-Type: application/xml' -w '\nHTTP STATUS: %{http_code}\nTIME: %{time_total}\n' \
-X $METHOD \
-d "$XML" \
-u "$AUTH" \
"$DEST"

exit 0

to rails test curl rest by bassnode on Feb 13, 2007

Building curb under Mac OS X

Had a bit of a problem getting curb to work in OS X, but if you have the curl port installed, its easy:

sudo port install curl
cd src
curl -O http://rubyforge.iasi.roedu.net/files/curb/curb-0.1.0.tar.gz
tar -zxvf curb-0.1.0.tar.gz
cd curb-0.1.0.tar.gz
ruby extconf.rb --with-curl-lib=/opt/local/lib/ --with-curl-include=/opt/local/include/
ruby tests/alltests.rb
sudo make install

to ruby mac curl curb by willcodeforfoo on Jan 05, 2007

Python - simplePing

// Verifica se un Server e' su o giu'

import pycurl

def nullFunc(args):
	pass

try:

	curl = pycurl.Curl()
	curl.setopt(pycurl.WRITEFUNCTION, nullFunc)
	curl.setopt(pycurl.URL, 'http://www.google.it')
	curl.perform()

	print "Server SU"

except Exception, error:

	print "Server GIU'"

to python curl http state ip ping pycurl by whitetiger on Nov 25, 2006

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