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@ -973,6 +973,8 @@ $ printf '%10s %5i %5i %5i %8.2f \n' $(cat printf.txt)
## awk ## awk
可以根据字段的某些条件进行匹配，例如匹配字段小于某个值的那一行数据。
```html ```html
$ awk '条件类型 1 {动作 1} 条件类型 2 {动作 2} ...' filename $ awk '条件类型 1 {动作 1} 条件类型 2 {动作 2} ...' filename
``` ```