How to use shell to iterate through the content of files?

Common methods for iterating over file contents using Shell involve using a loop structure, which can be combined with keywords like for and while for iteration operations. Below are some example codes:

1. for

   Example: in order to

#!/bin/bash

# 遍历当前目录下所有文件
for file in *
do
    # 判断是否是文件
    if [ -f "$file" ]
    then
        # 输出文件名
        echo "文件名: $file"
        
        # 逐行读取文件内容
        while IFS= read -r line
        do
            echo "$line"
        done < "$file"
        
        echo "---------------------"
    fi
done

1. during

#!/bin/bash

# 获取目录下所有文件
files=$(find . -type f)

# 遍历文件列表
for file in $files
do
    # 输出文件名
    echo "文件名: $file"
    
    # 逐行读取文件内容
    while IFS= read -r line
    do
        echo "$line"
    done < "$file"
    
    echo "---------------------"
done

The above code example simply iterates through and outputs the file contents, you can make corresponding modifications and changes based on your specific needs.