在找到搜索词后更新第n行

Question

这是我的文件：

$ cat sample1.txt
this is about weather. 
this is summer.   
I drink cold coffee 
I eat Ice-cream
I wear cotton clothes.
this is winter
I drink hot coffee
I eat cake
I wear warm clothes.
this is summer.
I wear cotton sleeveless.
I drink juice.

现在在这个文件中，如果我发现一个单词"；夏季"；，我需要更新一个单词"；棉花；至"；"浅色"；，具有sed或awk的任何输入plz。

Answer 1

cotton.sh内容：

#!/usr/bin/env bash
summer=$(grep -Fo -m1 summer $1)
if [[ ${summer} == "summer" ]]; then
sed -i 's/cotton/ligh color/g' $1
fi

执行：

/cotton.sh sample1.txt

备注：不要忘记为您的cotton.sh文件脚本(chmod u+x cotton.sh(设置执行权限