A short shell program to add all Postgres commands in the default Mac OS X PostgreSQL to your $PATH. This probably will be done automatically, so check before running it.

postgres_path.sh

# replace 9.3 with whatever version of PostgreSQL you have installed
# you can also link the commands to /usr/bin/ if you prefer

# before
########
# $ psql
# -bash: psql: command not found

for i in /Library/PostgreSQL/9.3/bin/*; do 
  t=${i##*/}; 
  ln -s "$i" /usr/local/bin/"${t%.*}"
done

# after
#######
# $ sudo -u postgres psql
# Password:
# psql (9.3.1)
# Type "help" for help.
#
# postgres=# 

+1