psql -U postgres
# Postgres "psql not recognized as an internal or external command"
# Just an update because I was trying it on Windows 10 you do need to set the
# path to the following:
# ;C:Program FilesPostgreSQL9.5in ;C:Program FilesPostgreSQL9.5lib
# You can do that either through the CMD by using set PATH [the path] or from my
# computer => properties => advanced system settings
# => Environment Variables => System Variables
# Then search for path.
# Important: don't replace the PATHs that are already there just add one
# beside them as follows
# ;C:Program FilesPostgreSQL9.5in ;C:Program FilesPostgreSQL9.5lib
# Please note: On windows 10, if you follow this:
# computer => properties => advanced system settings
# => Environment Variables => System Variables> select PATH,
# you actually get the option to add new row. Click Edit, add
# the /bin and /lib folder locations and save changes.
# Then close your command prompt if it's open and then start it again
# try psql --version If it gives you an answer then you are good to go if
# not try echo %PATH% and see if the path you set was added or not and if
# it's added is it added correctly or not.
psql -U postgres
# enter your password and you are in