If you quickly need to note something and you do not want to leave your browser then just add a bookmark to :
data:text/html, <html contenteditable>
and whenever you need to get the notepad, just open this bookmark. Sorry, I do not remember, where I got this from, but this is something that I did not discover but since I do not remember where I got this from, I am not able to credit the authour.
Continue readingIf you have got this question in your mind, then you are in right place.
vim -V20 2>&1 |tee
You can give the debugfile as any file, where you would want to log the debug messages. This will log a lot of information in the debugfile, you can open the file, once you have got the error in the main vim window. After this, you can open the debugfile and simply search for the error that you were getting. Just look for the reason why this error is originated in the debug logs and then it should be pretty simple to fix that.
Continue readingIn Fedora, ramdisks are not created by default as is the case with RHEL. So, if you need to get Ramdisks on Fedora, then you can do this:
sudo yum install MAKEDEV
This will create some default Ramdisk’s in the “/dev” directory. Now, if you need to change anything then feel free to go to “/etc/makedev.d” and feel free to change these files.
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For a long time I have not posted any script. So, its not that I have not written anything new, but just that did not put them here in lack of time. So, here is one interesting one. The original idea came from one posted in one of the interesting blog here. But the problem with this one was that for every time, it ran in the cron, it would make multiple entries in the “last” output (about 10 or more with my modifications for differentiating between solaris and Linux). This is something which is not quite desirable. Hence I came up with this script which is based on html template and hence the output is also easier to manipulate. BTW, just the below script will not help, you would need to download the template files as well. In the list.txt file, you will have to put the usename, password and the server IP to monitor. The server could be any Linux or Solaris host.
Continue readingIf you have to compare cksum for couple of files, the you know how cumbersome it is. So, I wrote a simple script, wherein you can create a file called cksums in the current directory and copy paste the result of “**cksums ***” into this file, and then run this script. Cool 🙂
#!/bin/bash -
#===============================================================================
#
# FILE: checkcksums.sh
#
# USAGE: ./checkcksums.sh
#
# DESCRIPTION: Compare cksums of multiple files.
#
# OPTIONS: ---
# REQUIREMENTS: ---
# BUGS: ---
# NOTES: ---
# AUTHOR: Amit Agarwal (),
# ORGANIZATION:
# CREATED: 02/22/2013 09:12:17 PM IST
# REVISION: ---
#===============================================================================
file=cksums
while read line
do
a=( $(echo $line) )
if [[ -f ${a[2]} ]]
then
b=( $(cksum ${a[2]}) )
if [[ $a == $b ]]
then
echo "Cksum for ${a[2]} = ${a[0]} matches"
else
echo "Failed ::Cksum for ${a[2]} = ${a[0]} matches"
fi
else
echo "Failed :: file ${a[2]} does not exist"
fi
done < $file
It is good practice to keep iptables/firewall enabled. But configuring it is difficult, do you agree. Not any more 🙂
Install firewall-config
sudo yum install firewall-config
This will install a GUI application, which you can run with “Firewall” application in the dash or with “firewall-config” in terminal. It is pretty straight forward to use this tool, even if you don’t have much knowledge on Firewall/iptables.
Continue readingIf you want to use sendmail so that you can send all your mails from the local system to your email address, then you have to use sendmail. Now, configuring sendmail has never been that easy and if you are working internally on your corporate network then for sending mails to the same domain, generally you don’t have to login. That being the case, you can use something simpler like “sstmp“. Install ssmtp with:
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