Configuring CLION to compile single independent files in a project.

                                                                           

                                            You can do this my adding a single line in CMakeLists.txt file

 add_executable(helloworld helloworld.cpp)

Changing hostname in vagrant!

                                                 hostnames in ubuntu/trusty64 are quite long like shown in the image below!

hostname in above pic is vagrant-ubuntu-trusty-64 and i fucking hate this long hostname so all you can do is run the command as shown in the pic below to change the hostname.

After doing this restart the terminal and this is what you get

and yes if you like my agnoster theme then check here how to do this.

EDIT:-> above method temporarily adds hostname for permanent changing the hostname you have to edit the hostname file present in the /etc/ directory.. just open it and remove the old hostname and add the new hostname. 

[Solved] Error installing pg, ERROR: Failed to build gem native extension.

                                                             If your are facing this kind of error as shown in the picture below!

Then maybe libpq-dev is missing from your system install it as shown in the picture below

Then try to install pg gem it will install this time without any problem! That's  it.

Connecting pgAdmin3 to Postgresql(Running on a Vagrant server)!

                                              So, i thought this tutorial is worth making a video so i made a video on connecting pgAdmin3 to postgresql which is running on vagrant and i'm embedding the video in this post!

I think this video will help you in connecting pgAdmin3 to postgresql server running on a vagrant machine. Thank you!

Changing the password of postgres user

                                      So to change the password of postgres run this command in terminal as shown in the picture below.

This will open the file pg_hba.conf... now try to find this line as shown in the pic below

And change the peer at the last to trust and save it!

After doing this restart the postgresql server by typing the command "sudo service postgresql restart"
after that login as postgres user and run the following command to change the password as shown in the picture below!

Press Enter and that's it your password is changed ... now just go back to the pg_hba.conf file and undo the change i.e. change the trust to peer that's it!



****************************EDIT --- june 16 - 2016 *****************************

I found one more way to change postgres user password in postgresql

Just enter the following command and this will log you in as postgres user so now you can acess the psql.

After this enter the psql by simply typing psql in terminal like this.

Now just enter the command \password postgres as in the image below

and voila ... we changed the postgres password. That's it :D 

Installing postgresql in Ubuntu/Trusty64 vagrant box!

                                                   So to install postgresql in vagrant ubuntu/trusty64 it's quite simple first of all run this command in terminal like this ...

This file will basically create a file in /etc/apt/sources.list.d/ directory which we name pgdg.list and will open this file in nano text editor .. so all you gotta do now is add the following line as shown in the pic below

after saving this run this one more command in the terminal[note :- i forgot to add this step when i was actually writing this post now i use babun so terminal may look different :p only for this step ]

Now all you gotta do is update the system using "sudo apt-get update" after this just add the following command to get this latest version of postgresql

As you can see it's postgresql 9.5 which is latest at the day i'm writing this blog! That's it!

Music Player in Kali Linux Terminal ..!

                                                          So in this post i'm gonna show you how you can install a music player in Kali Linux Terminal as show in the terminal!

So all you need is to run the following command in terminal as shown in the pics below

This actually installs the moc player now we need ffmpeg-plugin for moc player. run the following command shown in the pic below

That's it ...you can launch this player using the command "mocp" in terminal... one more thing it has many themes and then are present in /usr/share/moc/themes directory as shown in the picture below

So to use any theme(transparent-background in my case) provided in the directory use the command "moc -T transparent-background" in terminal and that's it. if you like this then let me know in the comment section :D