File pg_alts of Package postgresql

#!/bin/bash
#
# If the default version is not defined in the environment,
# source the config file. If it is also not defined in the
# config file, find the highest installed version
#

test -n "$PG_ALTS_DEBUG" && set -x

BASEDIR=/usr/lib/postgresql

if test -z "$POSTGRES_DEFAULTVERSION"; then
    . /etc/sysconfig/postgresql
fi
if test -n "$POSTGRES_DEFAULTVERSION"; then
    PGBINDIR=$BASEDIR$POSTGRES_DEFAULTVERSION/bin
else
    for DIR in $(ls -d $BASEDIR[1-8]?/bin); do
        test -x $DIR/psql && PGBINDIR=$DIR
    done
fi

BIN=$PGBINDIR/"${0##*/}"

test -x $BIN && exec $BIN ${1+"$@"}

echo "Cannot find a suitable executable for ${0##*/}."
exit 1