install pip for python 2.7 linux
#Debian/Unbuntu
apt-get install python-pip #python 2
apt-get install python3-pip #python 3
#CentOS/RHEL
yum install epel-release
yum install python-pip
#Fedora
dnf install python-pip #Python 2
dnf install python3 #Python 3
#Arch Linux
pacman -S python2-pip #Python 2
pacman -S python-pip #Python 3
#openSUSE
zypper install python-pip #Python 2
zypper install python3-pip #Python 3
#Some usefull commands
pip install packageName # Install <packageName>
pip uninstall packageName # Uninstall <packageName>
pip search packageName # Search <packageName>