1# UNFIXED BUG: hush thinks that ; && || & have the same precedence. 2# According to this doc, && || have higher precedence than ; &. 3# See example below. 4# Precedence of ; is not a problem in practice. Precedence of & is. 5# 6#http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html 7# 8#2.9.3 Lists 9# 10#An AND-OR list is a sequence of one or more pipelines separated by 11#the operators "&&" and "||" . 12# 13#A list is a sequence of one or more AND-OR lists separated by the operators 14#';' and '&' and optionally terminated by ';', '&', or <newline>. 15# 16#The operators "&&" and "||" shall have equal precedence and shall be 17#evaluated with left associativity. For example, both of the following 18#commands write solely bar to standard output: 19# 20# false && echo foo || echo bar 21# true || echo foo && echo bar 22# 23#A ';' or <newline> terminator shall cause the preceding AND-OR list 24#to be executed sequentially; an '&' shall cause asynchronous execution 25#of the preceding AND-OR list. 26 27echo First && sleep 0.2 && echo Third & 28sleep 0.1 29echo Second 30wait 31echo Done 32