工作中遇到要根據文件中某個字段分割成多行文本的處理，想到用awk處理，這里記錄下：

問題：

? ? 原文件：假設一共2個字段，用“|”分割，其中第二個字段用“#”分割，但該字段中也有不含“#”的值和空值

????要求：根據第二個字段，若含#，將這條數據根據#分割成多條數據，無#和無值的行不變

202143108500|#0_1000_VOICE#0_1000_VOICE#0_1000_VOICE#0_TRAFFIC#0_TRAFFIC#0_TRAFFIC 202121366359|#0_1000_VOICE#0_TRAFFIC 202143108500|#0_1000_VOICE#0_1000_VOICE#0_1000_VOICE#0_TRAFFIC#0_TRAFFIC#0_TRAFFIC 202121366359|#0_1000_VOICE#0_TRAFFIC 202113492312|W_GH_YYM 202132164529|

用awk解決：

1、將含“#”的一行變多行

awk -F "|" -vOFS="|" '{l=split($2,arr,"#");for(i=1;i<l;i++){$2=arr[i+1];print}}' ./test.txt

結果：

202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202121366359|0_1000_VOICE 202121366359|0_TRAFFIC 202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202121366359|0_1000_VOICE 202121366359|0_TRAFFIC

2、將不含“#”篩選出來

awk -F "|" '$2!~/#/{print}' ./test.txt

結果：

202113492312|W_GH_YYM 202132164529|

經過上面兩步就可以解決，將結果生成新的文件 a.txt

awk -F "|" -vOFS="|" '{l=split($2,arr,"#");for(i=1;i<l;i++){$2=arr[i+1];print}}' ./test.txt >a.txt awk -F "|" '$2!~/#/{print}' ./test.txt >>a.txt

a.txt:

202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202121366359|0_1000_VOICE 202121366359|0_TRAFFIC 202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_1000_VOICE 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202143108500|0_TRAFFIC 202121366359|0_1000_VOICE 202121366359|0_TRAFFIC 202113492312|W_GH_YYM 202132164529|

?

轉載于:https://www.cnblogs.com/jnba/p/10641991.html

總結

以上是生活随笔為你收集整理的awk对某个字段分割处理的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。