I am trying to set new password in postgreSQL.But I am getting error like below.
[root@localhost ~]# sudo -u postgres psql
 could not change directory to "/root"
 Welcome to psql 8.1.23, the PostgreSQL interactive terminal.
  Type:  \copyright for distribution terms
    \h for help with SQL commands
    \? for help with psql commands
    \g or terminate with semicolon to execute query
    \q to quit`postgres=# \password postgres
  Query buffer is empty.
  \p: extra argument "assword" ignored
  \p: extra argument "postgres" ignored`
 
     
    