../.././gcc/libgcc.mvars: No such file or directory

This bug struggled me for a long time. Therefore, I found a good solution in here.

Fruitful Regex Hints

Minimum 8 characters at least 1 Alphabet and 1 Number:

"^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$"
 
Minimum 8 characters at least 1 Alphabet, 1 Number and 1 Special Character:

"^(?=.*[A-Za-z])(?=.*\d)(?=.*[$@$!%*#?&])[A-Za-z\d$@$!%*#?&]{8,}$"

Minimum 8 characters at least 1 Uppercase Alphabet, 1 Lowercase Alphabet and 1 Number:
 
"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$"


Minimum 8 characters at least 1 Uppercase Alphabet, 1 Lowercase Alphabet, 1 Number and 1 Special Character:

"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[$@$!%*?&])[A-Za-z\d$@$!%*?&]{8,}"


Minimum 8 and Maximum 10 characters at least 1 Uppercase Alphabet, 1 Lowercase Alphabet, 1 Number and 1 Special Character:
 
"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[$@$!%*?&])[A-Za-z\d$@$!%*?&]{8,10}"

How to monitor the services in Ubuntu 14.10

To oversee ubuntu linux background daemons, following command is fruitful:
sudo initctl list

There is a detailed explanation for this init control tool in here 

Ruby Quick Reference

When hacking Ruby on Rails, Some strange code stick in my mind. Therefore, while searching good guide, I found this useful Ruby reference.

Ubuntu 14.10 MATE nm-applet appearing problem

When you install a new Ubuntu 14.10 MATE, you couldn't see network manager applet in your top panel. To be enable it, you should edit /etc/xdg/autostart/nm-applet.desktop
[Desktop Entry]
Name=Network
Comment=Manage your network connections
Icon=nm-device-wireless
Exec=nm-applet
Terminal=false
Type=Application
NoDisplay=true
NotShowIn=KDE;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=NetworkManager
X-GNOME-Bugzilla-Component=nm-applet
X-GNOME-UsesNotifications=true
#AutostartCondition=GNOME3 unless-session gnome <---Comment out

X-Ubuntu-Gettext-Domain=nm-applet

Furthermore, if you run below instructions in your terminal, you will enable nm-applet every log in.

mkdir -v ~/.config/autostart

cp /etc/xdg/autostart/nm-applet.desktop ~/.config/autostart

How to set/unset git proxy

To set proxy server with git:

http_proxy=http://$server_ip:$server_port/
git config --global http.proxy $http_proxy

To unset proxy server with git:

git config --global --unset $http_proxy

Ubuntu 13.04 launcher remove

I realize that I didn't write anything  here for a long time. I bought a new ultrabook. After installing ubuntu 13.04, I am really fed up with launcher. Therefore I decided to remove it. While I was wandering web sites, I came across a nice recommendation. And here you could see it. I think it is useful for people who want to remove launcher. For now, that's it...