Virtualenv: workon command not found

I have installed virtualenv and the virtualwrapper via apt-get, I got to a point where I created a virtual enviroment but however later on during that same day when I used the workon command it was not found. I further on went and inspected my home directory and .virtualenvs dir and the virtualenv I created earlier were still there ...any help would be appreciated. Thanks in advance.

Solving this problem took two steps:

Add this to your .bashrc / .bash_profile / .zshrc:

# load virtualenvwrapper for python (after custom PATHs)
venvwrap="virtualenvwrapper.sh"
/usr/bin/which -s $venvwrap
if [ $? -eq 0 ]; then
    venvwrap=`/usr/bin/which $venvwrap`
    source $venvwrap
fi

Then use:

source .bash_profile
# or .bashrc / .zshrc

to reflect the changes.

Additionally, if the terminal still sometimes cant find workon, use source .bash_profile to reset and find it again.

type source .profile in home directory from terminal.

Read the readme in the top of which virtualenvwrapper.sh You need to source it inside bashrc

open ~/.profile

cd ~
nano .profile

add at the end

#virtualenvwrapper setup
export WORKON_HOME=$HOME/envs
export PROJECT_HOME=$HOME/dev
source /usr/local/bin/virtualenvwrapper.sh

to load your .profile file you just edited:

$ . .profile