I have been following instructions that I found online to try to use virtualenv 
My steps were:
sudo easy_install pip- I'm doing this in my home directorysudo pip install virtualenv- I think virtualenv is installed at this point because when I try again, it says Requirement already satisfiedThe instructions then tell me to cd to my desktop and type in
virtualenv envyet the output is as follows"-bash: virtualenv: command not found"
Does it mean that the shell can't find the command virtualenv? I thought I installed it.