葵烟的博客Ambiguous operators need parentheses -----------不明确的运算需要用括号括起Ambiguous symbol ''xxx'' ----------------不明确的符号Argument list syntax error ----------------参数表语法错误Array bounds ...
M·King的博客Please explain to me why the following expression doesn't output anything:echo "" | egrep ""but the following does:echo "" | egrep "\"The behaviour of the first is as expected but the second should no...