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BASH STUDY

这个项目目的在于学习 bash.

#说明

由于初学shell,所以进程管理和系统级shell 没有记录。

#历史

  • 2014.3,读了 《学习 bash》第二版。
  • 2014.3.14,建立目录框架
  • 2014.3.28,增加了 awk,windows bat, python 脚本。

目录

实战

1、批量替换指定文件的指定内容

涉及知识点:基础语法grep 数据搜索awk 数据提取sed 数据修改

# 当然, grep 可以直接得到文件名的,这里作为演戏,先得到默认的匹配内容,然后使用awk处理得到文件名

for l in $(grep -r res.tiankonguse . | grep "res.tiankonguse.com/images/2019/0[1-8]")
do
    f=$(echo $l | awk -F: '{print $1}')
    echo "begin replease $f"
    sed -i 's/res.tiankonguse.com/res2019.tiankonguse.com/' $f
done

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