# place holder for future alias testingshopt -s expand_aliases# alias/unalias tests originally in builtins.testsunalias -a# this should return success, according to POSIX.2aliasecho alias: $?alias foo=barunalias foo# this had better return success, according to POSIX.2aliasecho alias: $?# bug in all versions through bash-2.05bunalias qfoo qbar qbaz quux 2>/dev/nullalias qfoo=qbaralias qbar=qbazalias qbaz=quuxalias quux=qfooqfoounalias qfoo qbar qbaz quuxunalias -aalias foo='echo 'alias bar=bazalias baz=quuxfoo barunalias foo bar baz${THIS_SH} ./alias1.sub