bash学习之四：介绍调试bash脚本的三个选项

set –f                 Disable file name generation using metacharacters

set –v                Prints shell input lines as they are read

set –x                Print command rtaces before executing command

上面列出了用于调试脚本的三个选项的英文含义，其中有个生词：metacharacter，它怎么翻译为中文，我也不知道，但其英文注释为：A metacharacter is a character that has a special meaning (instead of a literal meaning) to a computer program, such as a shell interpreter or a regular expression engine，说白了，就是那些有特殊含义的字符，比如：*。