MySQL (8.0.22) echo "select now();" > a.sql mysql test < a.sql echo "select now();" | mysql test mysql test <<EOFselect now();EOF →いずれも実行後mysqlは終了する Oracle (19c) echo "select sysdate from dual;" > a.sql sqlplus test/test@pdb1 @a.sql sqlplus test/test@pdb1 < a.sql echo "select sysdate from dual;" | s…</eofselect>