Why Alias Command With Itself

Aliasing the command to itself to suppress the original functionality of the command and provide it new added sets of functionality can come quite handy for linux users and administrators.

If you have been using linux shell for a while, I'm pretty sure you are now familiar with the `ls` command, if not I think you have just learnt to use man pages. Probably you've been using `ls -l` command to list files with the files size as well. Too bad, you won't just be able to instantly make the sense of the file size displayed using this command so why not alias `ls` command to always provide human readable file sizes. So here is my alias:

alias ls='ls -lh'

This is what I always want to see as the output with `ls` command. The same kind of alias can be used with `du` and `df` commands. There are number of other cases where aliasing a command with itself is good choice.

Another example is the less command. By default, you need to press q to exit less which can be quite annoying if the entire content can fit in a single screen. However, adding -F flag will gracefully quit after displaying the content if the content fits in a single screen. So I have my alias for less as below:

alias lesss='less -F'

If something shoots in your mind, feel free to share here as a comment :)


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Russian Hacker Bypasses Apple's App Store

A Russian hacker known as ZonD80 has discovered a method to retrieve apps from in-app for iOS apps free of cost. The best thing about this bypassing method is that this method does not require the i-device to be jailbroken. This method works on most of the major iOS versions from 3.0 to 6.0.

The step by step guide on using this method is available at the russian website HERE. The Russian guy has also setup a website called www.in-appstore.com.

Original Link

Watch Video About This Method

HERE is the copy of the instructions to follow.

*Take care while using this trick. I've not tested it and don't know if there are any security implications as the side effect of this bypass method.


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Fast Share Your Files Using Python Script

If you were unaware, there is a command line switch for python that lets you the python library module as a script and I'm sharing a small trick on how you can easily share your files with other computers over LAN/Internet by running a python module that lets you run the tiny web server. Isn't it great when you don't have Samba?

Fire up the terminal, change to the desired directory you wish to share and type the following command:

python -m SimpleHTTPServer

Be cautious with the cases of characters of module 'SimpleHTTPServer' else you'll never find your mistake with this command :D

Once you've run the above command, the HTTP server will start to listen on the port 8000 (by default) so the other parties will just have to open up their favorite web browser and type the correct address followed with the colon and port 8000(eg. 192.168.1.21:8000)

I hope this proves useful sometimes. :)


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Stack-based Directory Switching For Easy Reversal

So how many times have you used the `cd` command repeatedly to go back and forth of two or more directories. Probably you are already familiar to the `cd -` command which lets you switch between the current and the previous directory. But, many times this current and previous directory switching restriction will not suffice and hence a better option in such case is to use the `pushd` command instead of `cd`.

For example, just use the `pushd somedirA`, `pushd somedirB`, ... and like that. Now if you need to switch back, you can just use `popd` command and you'll be switching back easily. The `pushd` command saves the current directory path and then cds to the supplied path.

If you dig more, you'll come to know about the -n and -N switches you can combine with these commands so I will let you explore on this. Also, you can use the `dirs` command to view the stack of directories. If you are some computer student or enthusiast, you have already gotten an idea from a famous data structure called stack. Anyway, I hope this comes handy sometimes like it does to me :)


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Fix "trying to overwrite '*', which is also in package *"

Today I was updating few stuffs in edubuntu and dpkg was continually throwing me the problem while trying to install kdelibs-data. The error read as "trying to overwrite 'A', which is also in package X" and the fix was pretty straightforward but still I thought it would help someone out there.

Below is the exact error I was getting while trying to install kdelibs5-data from the deb file.

dpkg: error processing /var/cache/apt/archives/
kdelibs5-data_4%3a4.4.5-0ubuntu1.2_all.deb (--unpack):
trying to overwrite '/usr/share/polkit-1/actions
/org.kde.kcontrol.kcmremotewidgets.policy', which is also in package kdebase-runtime-data 4:4.6.5-0ubuntu1

The fix was pretty simple. Add the --force-overwrite switch in the dpkg command as below:

dpkg -i --force-overwrite kdelibs5-data_4.4.5-0ubuntu1.2_all.deb

I hope this comes useful sometimes.


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Flash Punisher Plugin For Counter Strike Server [New Release]

Recently I wrote a small AMX Mod X plugin that kills the player who throws flashbangs in counter strike and this post provides the plugin and source code of the plugin for the download.

Why this plugin

Well there are probably few other flash bang punishment plugins already available for download but all I needed was a minimal plugin that would just kill the flashbanger and prevent the effect of the flashbang to other players.

At the first look, the plugin may sound stupid but we play a lot of aa_dima map and few players were continually throwing the flashbangs. There are several maps which are meant to be played by making use of shooting skills that the use of flashbangs. But some people never understand.

I chose to have death as the punishment because that would be the worst punishment any player would expect. And, they will surely be not throwing flashbangs in next rounds.

Download flash_kill.amxx

Or check the Github Repos of Flash Punisher.

Installation is similar to other plugins. Copy the flash_kill.amxx file to cstrike/addons/amxmodx/plugins/ and add a new line "flash_kill.amxx" (without quotes) in the cstrike/addons/amxmodx/configs/plugins.ini.

CVARS:
tg_flashpunish 0 - prevent the killing of player on throwing flashbang.
tg_flashpunish 1 - the plugin shows its effect i.e. the player dies on throwing flashbang.

I hope this plugin becomes useful to some of you guys. :)


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IP Address Based Restriction Using Htaccess File

Sometimes you need to restrict access to files in your webserver to certain IP address or IP range only. In such case, you can apply a simple .htaccess rule and this post provides an information on how to make IP based restriction Using .htaccess.

First, be sure to enable use of htaccess in apache in your distro.



An example of .htaccess file that will block requests from all IP addresses but the subnet of 192.168.0.0/16 is as below:

<limit GET>
order deny,allow
deny from all
allow from 192.168
</limit>

Similarly, an example of .htaccess file that will allow requests from all IP addresses but the subnet of 192.168.0.0/16 is as below:

<limit GET>
order allow,deny
allow from all
deny from 192.168
</limit>

You can also specify the individual IP addresses instead of the entire subnet according to your need. Also, note that there should be no space after the comma between allow,deny.

Once you create the .htaccess file, make sure you've provided proper permission to it.

samar@Techgaun:/var/www/samar$ chmod 0644 .htaccess

Once you have made the .htaccess file and provided the proper permission, you might need to restart the apache server(but per directory .htaccess does not require reloading the apache in most cases) so that new configurations will show an effect.

samar@Techgaun:/var/www/samar$ sudo service apache2 reload

I hope this comes handy :)


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NCell Introduces Ncell Sapati For Credit Based Recharge

Everytime ncell introduces a new service, it understands what its customer are looking for. Sometimes Recharging your phone becomes imposslible due to outreach of shop , sometime it may be late night or too early , reaching for the card sounds tough. But now ncell has extended it service by introducing Ncell sapati.

To get Ncell sapati of Rs. 20 as main balance, you will have to dial *9988#. You will be charged an extra amount of Rs. 2(Exclusive of VAT and additional taxes) while using this service.

More information is available through IVR by dialing 9980 or play the audio below to hear the full instruction.





This service will come handy lots of time to lots of customers so I welcome this service introduced by Ncell. :)


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