get all the urls in html file (local or on server).

To use this, you will need the lynx tool, so install that first.

sudo yum install lynx

Now, to get list of all the URLs in local html file or some URL, just execute this:

lynx -dump -listonly

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procmail filters – apply to received mails.

If you already have some mail in your maildir and you have set procmail filters, then it is difficult to apply the procmail filter, right? Not so, you just need to go to the Inbox directory and then execute the command.

for i in *; do cat $i|procmail; rm -f "$i"; done

This will pass all of your e-mail through procmail again and then your filters will get applied. Mails will go to their appropriate directory and you will be one happy man, I hope.

phpmyadmin access problem and change server from URL

I was having issues with one of the phpmyadmin setups. The first server defined in the config file was not accessible and the theme that I was using was not allowing me to change the server from the first page. This resulted in a state where I was not able to access phpmyadmin in any way. I could not connect to any of the servers. And thus had to hack my way in to phpmyadmin to find out how to connect to other servers from URL. And here is my finding:

snmpd -verify if the mibs are loaded.

If you are setting up the snmpd server and have added your own mibs and do not really know if the mibs are loaded or not then simply go to the directory:

/var/lib/net-snmp/mib-indexes

This can save you a lot of time, if you are not getting results with snmpwalk. You can even use snmpwalk as :

snmpwalk -v  -c

Well, these little things can save you a lot of time 🙂

Your own local search engine.

There are times when you would want to have a local search engine capable of indexing even pdf and doc files. So here is a solution.

You can use “Omega” and here are the instructions.

download omega from http:// xapian.org/download

yum install xapian libuuid-devel

And then make and install omega and for this you can follow the instructions.

Create index using command omindex
and then you can use quest or search.py to search or you can setup the cgi way so that you can use local browser to search.

xmlwf – Is your xml document well formed?

There is a small nifty utility called xmlwf that can check your xml documents to see if they are well formed.

sudo yum install expat

Once installed, simply use :

xmlwf

Need more details, just check the man page 🙂

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Interesting repository for Fedora.

Here is one repository that you can add to your Fedora to give it a few more hundred packages:

cat >/etc/yum.repos.d/rpm-sphere.repo <<EOF
[rpm-sphere]
name=RPM Sphere
baseurl=http://download.opensuse.org/repositories/home:/zhonghuaren/Fedora_16/
gpgkey=http://download.opensuse.org/repositories/home:/zhonghuaren/Fedora_16/repodata/repomd.xml.key
enabled=1
gpgcheck=1
EOF