how to reset password in postgres code example

Example 1: reset postgres password windows

Backup the pg_hba.conf file by copying it.
Edit the pg_dba.conf, change `METHOD` to 'trust'
Restart the PostgreSQL server.
psql -U postgres.
ALTER USER postgres WITH PASSWORD 'new_password';
Restore the pg_dba.conf file.
Restart the PostgreSQL server.

Example 2: how to reset postgres password

sudo sed -ibak 's/^\([^#]*\)md5/\1trust/g' /opt/bitnami/postgresql/conf/pg_hba.conf
sudo -u postgres pg_ctl reload

Example 3: How to reset forgotten postgresql password

# sudo -u postgres psql
could not change directory to "/root"
psql (9.1.11)
Type "help" for help.

postgres=# \password
Enter new password:
Enter it again:
postgres=# \q