在bash中为文件的每一行添加一个数字

Question

我在Linux中有一些带有一些行的文件，如：

2013/08/16,name1,,5000,8761,09:00,09:30
2013/08/16,name1,,5000,9763,10:00,10:30
2013/08/16,name1,,5000,8866,11:00,11:30
2013/08/16,name1,,5000,5768,12:00,12:30
2013/08/16,name1,,5000,11764,13:00,13:30
2013/08/16,name2,,5000,2765,14:00,14:30
2013/08/16,name2,,5000,4765,15:00,15:30
2013/08/16,name2,,5000,6765,16:00,16:30
2013/08/16,name2,,5000,12765,17:00,17:30
2013/08/16,name2,,5000,25665,18:00,18:30
2013/08/16,name2,,5000,45765,09:00,10:30
2013/08/17,name1,,5000,33765,10:00,11:30
2013/08/17,name1,,5000,1765,11:00,12:30
2013/08/17,name1,,5000,34765,12:00,13:30
2013/08/17,name1,,5000,12765,13:00,14:30
2013/08/17,name2,,5000,1765,14:00,15:30
2013/08/17,name2,,5000,3765,15:00,16:30
2013/08/17,name2,,5000,7765,16:00,17:30

我的列分隔符为“,”，在第三列（当前为,,）中，我需要在同一天内填写条目编号。例如，与日期 2013/08/16我有11行，日期为2013/08/17 7行，所以我需要添加数字，例如：

2013/08/16,name1,1,5000,8761,09:00,09:30
2013/08/16,name1,2,5000,9763,10:00,10:30
2013/08/16,name1,3,5000,8866,11:00,11:30
2013/08/16,name1,4,5000,5768,12:00,12:30
2013/08/16,name1,5,5000,11764,13:00,13:30
2013/08/16,name2,6,5000,2765,14:00,14:30
2013/08/16,name2,7,5000,4765,15:00,15:30
2013/08/16,name2,8,5000,6765,16:00,16:30
2013/08/16,name2,9,5000,12765,17:00,17:30
2013/08/16,name2,10,5000,25665,18:00,18:30
2013/08/16,name2,11,5000,45765,09:00,10:30
2013/08/17,name1,1,5000,33765,10:00,11:30
2013/08/17,name1,2,5000,1765,11:00,12:30
2013/08/17,name1,3,5000,34765,12:00,13:30
2013/08/17,name1,4,5000,12765,13:00,14:30
2013/08/17,name2,5,5000,1765,14:00,15:30
2013/08/17,name2,6,5000,3765,15:00,16:30
2013/08/17,name2,7,5000,7765,16:00,17:30

我需要用bash来做。我该怎么办？

Answer 1

这个也很好：

awk -F, 'sub(/,,/, ","++a[$1]",")1' file

输出：

2013/08/16,name1,1,5000,8761,09:00,09:30
2013/08/16,name1,2,5000,9763,10:00,10:30
2013/08/16,name1,3,5000,8866,11:00,11:30
2013/08/16,name1,4,5000,5768,12:00,12:30
2013/08/16,name1,5,5000,11764,13:00,13:30
2013/08/16,name2,6,5000,2765,14:00,14:30
2013/08/16,name2,7,5000,4765,15:00,15:30
2013/08/16,name2,8,5000,6765,16:00,16:30
2013/08/16,name2,9,5000,12765,17:00,17:30
2013/08/16,name2,10,5000,25665,18:00,18:30
2013/08/16,name2,11,5000,45765,09:00,10:30
2013/08/17,name1,1,5000,33765,10:00,11:30
2013/08/17,name1,2,5000,1765,11:00,12:30
2013/08/17,name1,3,5000,34765,12:00,13:30
2013/08/17,name1,4,5000,12765,13:00,14:30
2013/08/17,name2,5,5000,1765,14:00,15:30
2013/08/17,name2,6,5000,3765,15:00,16:30
2013/08/17,name2,7,5000,7765,16:00,17:30