sxiv – image viewer

sxiv is a nice alternative to feh. It is very light weight and quite useful. Here is the description:

Description :
sxiv is an alternative to feh and qiv. Its only dependency besides xlib
is imlib2. The primary goal for writing sxiv is to create an image viewer,
which only has the most basic features required for fast image viewing (the
ones I want). It works nicely with tiling window managers and its code base
should be kept small and clean to make it easy for you to dig into it and
customize it for your needs.

Continue reading

cksum – compare for multiple files.

If 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

Related articles

• pycksum 0.4.0
• Checking if files are different using cmp
• Alternative to MD5 hash?

IE8 – Developer Tools

Don’t start banging me for this, but I had to test something on Windows and thus found out this. I f  you need to debug or test something on IE8 on Windows, then you can simply press “F12” and this will bring up the developer tools… could be useful to you, sometime if you are stuck with testing something on IE on windows 🙂

Related articles

• Microsoft’s Revamped ‘Modern.IE’ Offers Free Windows Virtual Machines
• Microsoft Launches Windows QuickStart Kit For Mac Developers, A $25 USB Stick With Windows 8 Pro And Parallels For Mac
• Microsoft Updates Modern.ie, Website Testing Made Easier

slow ssh connection

If you are experiencing slow ssh connections, then possibly your system is trying to do reverse lookup of the IP address. If that is the case, then you can add the below to “hosts” line in /etc/nsswitch.conf file.

‘[NOTFOUND=return]’

The other cause for slow connections can be GSSAPI authentication. If that is the case, then the simplest solution is to add the following in your “~/.ssh/config” file:

vim mappings for multiple files.

If you open multiple files in vim with command line option. Then the only way to move between the files is “:n” and “:N”. There is a easier way to do this. Just add mappings for this in vimrc. Here is what you can use.

map  :N
map  :n

And if you want to make sure that you move to the prev or next file after saving the file, then you modifyt the mapping like this:

rpmconf – Tool to handle rpmsave and rpmnew files

Install the utility:

sudo yum install rpmconf

Description:

Description : This tool search for .rpmnew, .rpmsave and .rpmorig files and ask you what to do

with them:

Keep current version, place back old version, watch the diff or merge.

And finally run the utility:

sudo rpmconf -a

and if there is a conflict or rpmsave or rpmnew file, then you will see something like this:

qemu manager for Windows to run your linux distribution

If you are into virtualization, then you must have heard about Qemu. And if you are on windows then this is a must:

http://www.davereyn.co.uk/download.htm

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