正则表达一点例子.

grep -P "\d{7}(\s+|:)(\d\d[\s+-]?){7}"

用来搜索同一个文本内的如下格式的数据:

2012083:04-09-14-15-26-33-04                               
2012084:02-10-20-26-28-29-14                               
2012103 11 14 32 33 02 09 04 14 11 33 32 364812438 452814888