This deserves some link love
Subscribe to the comments for this postAs Close to A Real Daemon As Bash Scripts Get
What it does is allow you to write a bash function called “payload” like so:
function payload() {
while [ true ]; do
checkforterm
date
sleep 1
done
}
source path/to/daemon-functions.sh
Once you’ve done that it all just happens. daemon-functions gives you logging of stderr, stdout, a pid file, start, stop, pause, resume, and more functions. when you start your daemon it detaches completely from your terminal and runs in the background. Works very simply with monit straight out of the box. you can have as many daemons as you wish in the same directory and they wont clobber each other (as the pid, control, and log files all are dynamically keyed off of the original script name.) Furthermore inside your execution loop inside of the payload function place a checkforterm call at any place which it makes sense for your script to be paused, or stopped. it can detect stale pid files and run anyway if the process isnt really running. As an added bonus you dont actually have to loop inside payload, you can put any thing in there, have a script thats not a daemon, but will take an hour, day, week, month to finish? stick it in, run it, and forget it.
AIM Spam
I’m just waiting for the akismet-style service/plugin combo to come along for the IM space… It’s probably long overdue.
building sed for osx
A quick googling this morning landed me here: http://wiki.octave.org/wiki.pl?OctaveForMac which gives perfectly good instructions on installing sed. except it didnt work. I grabbed the latest version of sed (4.1.5) and got the error
sed: 1: "install_sh=/Users/apoka ...": command i expects \ followed by text sed: 1: "install_sh=/Users/apoka ...": command i expects \ followed by text
Ironic, huh? Well taking a guess that at some point sed hadcome to depend on its own functionality to configure itself I jumped back a version… Figuring i replace BSD sed with an out of date GNU sed, and then use the old GNU sed to build the new GNU sed. Which worked great. I Installed first sed-3.0.2, and then 4.1.5 in this manner:
./configure --prefix=/usr/ --with-included-regex --with-included-gettext && make && sudo make install
I’m happy with my -r again…
# date | sed -r s/'[0-9]‘/’?'/g Thu Apr ?? ??:??:?? PDT ????
I keep marking this as unread in google reader…
Daemonize Anything
-v is for verbose, damnit
This has been a PSA
Logging post data
Make a /home/user/postlog/ directory, then a /home/user/postlog/logs/ directory (and chmod a+rw that one.) Next make a simple /home/user/postlog/postlog.php file with the following contents:
<?php
if ( isset($_POST) && is_array($_POST) && count($_POST) > 0 ) {
$log_dir = dirname( __FILE__ ) . '/logs/';
$log_name = "posts-" . $_SERVER['REMOTE_ADDR'] . “-” . date(”Y-m-d-H”) . “.log”;
$log_entry = gmdate(’r') . “\t” . $_SERVER['REQUEST_URI'] . “\r\n” . serialize($_POST) . “\r\n\r\n”;
$fp=fopen( $log_dir . $log_name, ‘a’ );
fputs($fp, $log_entry);
fclose($fp); }
?>
Finally add this line to the top of your .htaccess file:
php_value auto_prepend_file /home/user/postlog/postlog.php
If all went well this should start logging any request to any php file with any post data into the /home/user/postlog/logs/ direcory (with a unique log per ip per day)
Autumn Leaves Leaf (Irc Bot) — Chanlogger
class Chanlogger < AutumnLeaf def did_receive_channel_message(sender, channel, msg) log_base = File::dirname(File::dirname(__FILE__)) + "/data/logs" subdir = log_base + "/" + Date::today.to_s[0..6] Dir::mkdir(subdir) if false == File::directory?(subdir) logfile = subdir + “/” + channel.to_s.sub(’#',”) + “@” + Date::today.to_s f = File::open(logfile, ‘a’) f.puts(Time::now.to_s + “\t” + sender.to_s + “\t” + msg.to_s) f.close() end end