Upload code to https://gist.github.com.
# To login in gist on this computer:
gist --login
# To create a gist from any number of text files:
gist file.txt file2.txt
# To create a private gist with a description:
gist -p -d "A meaningful description" file.txt
# To read contents from STDIN and create a gist from it:
echo "hello world" | gist
# To list your public and private gists:
gist -l
# To list all gists for the currently logged in user:
gist -l user_name
# To use the id from the gist URL to modify or include a file:
gist -u GIST_ID file.txt