--re-interval
Enable the use of interval expressions in regular expression matching (see Regular , Expressionsbelow). Interval expressions were not traditionally available in the AWK language. The POSIX standard added them, to make awk and egrep consistent with each other. However, their use is likely to break old AWK programs, so gawk only provides them if they are requested with this option, or when --posix is specified.作者: iori809 時間: 2010-01-30 20:36 標題: 回復 #3 qinghan1125 的帖子 其實主要是AWK的版本問題在 POSIX之前的版本大括號不可使用。 之后就可以 了