对齐文本文件中的列
我在Unix中有一个如下(test.txt)的文件: 20130912-02:29:03 BT_TBL CISCUST BT_TBL_CISCUST_003015.dat 20130912-05:00:04 BT_TBL TMVLP BT_TBL_TMVLP_001026.dat 20130912-08:26:20 D_SNODE CPR8S D_SNODE_CPR8S_001772.dat 20130912-12:15:37 BT_PRA EWSDCAI BT_PRA_EWSDCAI_193228.dat 20130912-12:15:03 AMSD TTFILE AMSD_TTFILE_285130.dat 20130912-12:10:02 SIN2TTFILE SIN2_TTFILE_131635.dat 20130912-12:15:16 BT_ONEI NOAS_AM BT_ONEI_NOAS_AM_032902.dat 我需要像这样的固定长度的列。它们之间应使用制表符分隔: 20130912-02:29:03 BT_TBL CISCUST BT_TBL_CISCUST_003015.dat 20130912-02:30:05 BT_TBL CISTERM BT_TBL_CISTERM_003034.dat 20130912-05:00:04 BT_TBL CTVLP BT_TBL_CTVLP_001005.dat 20130912-05:00:04 BT_TBL TMVLP BT_TBL_TMVLP_001026.dat 20130912-08:26:20 D_SNODE CPR8S D_SNODE_CPR8S_001772.dat 20130912-08:20:07 …