shp2pgsql not found

Sorry my english!
I have installed postgres/postgis in my Debian Etch on laptop, but
when start command shp2pgsql it get the error:

postgres@debian:/usr/local/pgsql/bin$ shp2pgsql -s -1 /home/sam/Desktop/test_postgis/Dighe.shp test Prova > /home/sam/Desktop/test_postgis/test.sql
-su: shp2pgsql: command not found

Please help me!