Miscellaneous Stuff

FAQ: How do I download the Cisco VPN client?

For some reason, the software can only be downloaded from the Software Center by registered customers.

HOWTO: Uninstall DivX

DivX Version 6.7 installs Applications/DivX/Uninstall DivX for Mac.app that can be used to uninstall DivX. (Installing 6.7 will supposedly upgrade all existing DivX bits.)

INFO: Handling missing methods in various languages

PHP: __call
Perl: AUTOLOAD
Ruby: method_missing
Python: __getattribute__
JavaScript: ???
  FF 3+: __defineGetter__

See:

(This is technically called "intercession".)

INFO: MD5SUM HASH OF A ZERO-LENGTH FILE

d41d8cd98f00b204e9800998ecf8427e

INFO: SHA1SUM HASH OF A ZERO-LENGTH FILE

adc83b19e793491b1c6ea0fd8b46cd9f32e592fc

INFO: MD5SUM HASH OF A FILE WITH A SINGLE NEWLINE

68b329da9893e34099c7d8ad5cb9c940

INFO: SHA1SUM HASH OF A ZERO-LENGTH FILE

da39a3ee5e6b4b0d3255bfef95601890afd80709

HOWTO: FIND FLASH URL

(If a regular "view source" doesn't work or is difficult:) there's probably a better way, but one way is to use Firefox's Firebug add-on, select the "Net" tab, then choose the "Flash" option. This should list all the Flash URLs that appear on the page; right-clicking allows you to copy the location to the clip-board.

REGEXP: PARSE ENTRIES IN A COMBINED LOG FILE

(Perl regexps, but can be adapted.)

Parse a line of the combined logfile:

m{
  (\S+)\s      # Remote host
  (\S+)\s      # Remote logname (from identd, if supplied)
  (\S+)\s      # Remote user
  \[(\d{2}/\w+/\d{4}\:\d{2}\:\d{2}\:\d{2}\s+.+?)\]\s # Time
  "(\w+\s\S+\s\w+\/\d+\.\d+)"\s # First line of request
  (\d+)\s      # Status
  (\d+|-)\s?   # Bytes sent, excluding HTTP headers
  (?:"(\S+)"\s # Referer (sic)
  "(.+?)")?    # User-Agent
}ox;

Parse the first line of the request:

m{
  (\w+)\s         # Method
  (\S+)\s         # URL
  (\w+\/\d+\.\d+) # Version
}ox;

FAQ: WHAT'S THE SpryMediaUK_Grid COOKIE?

It stores the per-site configuration settings for Spry Media's "Grid" bookmarklet.

HOWTO: Do reverse DNS query for a range of addresses

$ for n in $(seq 1 254) ; do dig -x 217.70.191.$n +short ; done

FAQ: How to convert tabs to spaces?

Change in-place (with filename.txt.bak as a backup):

$ perl -pi.bak -e 's/\t/    /g;' filename.txt

Change tabs to spaces in *.php files, without backups:

$ find . -name '*.php' -exec perl -pi -e 's/\t/    /g;' {} \;

HOWTO: Get soapUI 4.0 working on Ubuntu 11.04

As described in http://aspemo.blogspot.com/2011/05/soapui-on-ubuntu-1104.html, uncomment the line

JAVA_OPTS="$JAVA_OPTS -Dsoapui.jxbrowser.disable=true"

from soapui.sh.