August 4th, 2009
What to find out how long command will take to run? Perhaps you need to know how long your capistrano deployment is taking to run.
Just type ‘time’ in front of your command and you’re done:
$ time ps aux
...
root 14 0.0 0.1 77000 1896 ?? Ss 23Jul09 43:36.24 /usr/sbin/configd
root 13 0.0 0.0 601332 632 ?? Ss 23Jul09 4:02.60 /usr/sbin/syslogd
root 12 0.0 0.0 600236 440 ?? Ss 23Jul09 5:40.11 /usr/sbin/notifyd
root 11 0.0 0.1 78872 3460 ?? Ss 23Jul09 8:05.65 /usr/sbin/DirectoryService
root 10 0.0 0.0 75968 992 ?? Ss 23Jul09 0:01.82 /usr/libexec/kextd
root 1 0.0 0.0 600820 536 ?? Ss 23Jul09 3:22.52 /sbin/launchd
...
ps aux 0.01s user 0.04s system 6% cpu 0.694 total
That’s all there is to it.
From the man pages:
NAME
time -- time command execution
SYNOPSIS
time [-lp] utility
DESCRIPTION
The time utility executes and times utility. After the utility finishes,
time writes the total time elapsed, the time consumed by system overhead,
and the time used to execute utility to the standard error stream.
Times are reported in seconds.
February 25th, 2009
I thought I’d post a list of software I’ve been using consistently for the last month. I’ve broken it down to stuff I use on a day-to-day basis and on a several-times-a-week basis. Kind of nice that I didn’t have to put Visual Studio on either list.
Every Day
Several Times a Week
September 11th, 2008
I stumbledupon the Metasploit project last night.
“Metasploit provides useful information to people who perform penetration testing, IDS signature development, and exploit research. This project was created to provide information on exploit techniques and to create a useful resource for exploit developers and security professionals.”
Basically, it’s an exploit framework that makes it very easy to run exploits against local and remote systems with a chosen payload, such as a remote shell or reverse VNC session. It comes with a library of exploits for all sorts of OSes and software, even SCADA.
Another interesting note is that the Metasploit framework is written in ruby and has several user interfaces including a command line, gtk gui, and a Rails web interface.
http://www.metasploit.com/
Fear the Metasploit Framework
June 4th, 2008
I’ve been using bash forever and never knew about this:
$ cd -
This will let you change directory to your previous location in the file system. It’s and easy way switch back and forth between two directories.
June 4th, 2008
As of Firefox 3, bookmarks are saved in a places.sqlite database file instead of the usual bookmarks.html file. This breaks functionality with some extensions and, more importantly, application launchers like Launchy and Find and Run Robot. To fix this, you can configure Firefox 3 to auto-export your bookmarks to your bookmarks.html file. To do this, enter about:config in your browser location bar and change the browser.bookmarks.autoExportHTML key to true. Now when you exit Firefox, your bookmarks will be written to your bookmarks.html file for your extensions and app launchers to use.
December 11th, 2007
This weekend, on 12/8/07, I asked the most beautiful girl in the world to marry me and she said YES. YES!!
Here are the pictures.
