bash腳本中的條件字符串替換

Question

我對bash腳本非常陌生，並且嘗試對大型CSV文件中的數據進行大量更新。

文件結構為：

date|id|id|000000|string_type|0|0|0.00|0|0|0|0|0|0|string_subtype.

更改的是string_subtype，有時是string_type。

當我僅使用以下方式更改string_subtype值時：

sed -i 's/string_subtype_old/string_subtype_new/g' $file

沒有問題。

問題是當我同時更改單個行的string_type和sub_type時，sub_type更改為具有相同string_type的所有記錄

例

從

date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeA
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeA
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeB
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeB
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeC
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeC

至

date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeD
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeD
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeE
date|id|id|000000|typeA|0|0|0.00|0|0|0|0|0|0|subtypeE
date|id|id|000000|typeB|0|0|0.00|0|0|0|0|0|0|subtypeF
date|id|id|000000|typeB|0|0|0.00|0|0|0|0|0|0|subtypeF

我嘗試過

sed -e 's/string_type_old/string_type_new/g' -e 's/string_subtype_old/string_subtype_new/g' $file

但是所有string_type_old都改變了！

有什么建議么？

- 編輯 -

真實的例子：

從

2014-01-01|000fc55|297633835|122350|WHOME|0|0|0.00|2|0|0|0|0|0|WHOME_CLEAN
2014-01-01|000fc56|297633835|122377|WHOME|0|0|0.00|2|0|0|0|0|0|WHOME_STORA
2014-01-01|000fc57|297633835|122378|WHOME|0|0|0.00|2|0|0|0|0|0|WHOME_OTHER
2014-01-01|000fc58|297633835|122428|WHOME|0|0|0.00|2|0|0|0|0|0|WHOME_KGADG
2014-01-01|000fc59|297633835|120776|WHOME|1|0|0.00|0|0|0|0|0|0|WFOOD_GOURT

至

2014-01-01|000fc55|297633835|122350|WHOME|0|0|0.00|2|0|0|0|0|0|W_CLEAN
2014-01-01|000fc56|297633835|122377|WHOME|0|0|0.00|2|0|0|0|0|0|W_STORA
2014-01-01|000fc57|297633835|122378|WHOME|0|0|0.00|2|0|0|0|0|0|W_OTHER
2014-01-01|000fc58|297633835|122428|WGADG|0|0|0.00|2|0|0|0|0|0|W_KGADG
2014-01-01|000fc59|297633835|120776|WFOOD|1|0|0.00|0|0|0|0|0|0|W_GOURT

原料1至3很簡單

sed -i's / WHOME_CLEAN / W_CLEAN / g'$ file

sed -i's / WHOME_STORA / W_STORA / g'$ file

sed -i's / WHOME_OTHER / W_OTHER / g'$ file

在Raw 4和Raw 5中，我需要在WGADG或WFOOD中更改主類型WHOME。

同

sed -e's / WHOME / WGADG / g'-e's / WHOME_KGADG / W_KGADG / g'$ file

WHOME的所有原始數據都已更改！ 我需要一些命令來過濾grep，僅過濾type == WHOME && subtype == WGADG的raws

Answer 1

您只能指定一次更改子類型，如下所示：

sed '0,/string_subtype_old/s/string_subtype_old/string_subtype_new/'