#!/bin/bash

# 设置保存文件
ipaddress=$(ip address | grep -oP '(?<=inet )\d+\.\d+\.\d+\.\d+(?=\/2)' | head -n 1)
filename=$ipaddress'_'$(hostname)'_'$(whoami)'_'$(date +%s)_CmdFileCheck_log'.md'

print_msg() {
  echo -e "$1\n" | tee -a $filename
}

print_msg "## 文件检查"

cmdline=(
  "which"
  "ifconfig"
  "ls"
  "login"
  "netstat"
  "top"
  "ps"
  "find"
  "grep"
  "passwd"
  "shadow"
  "curl"
  "wget"
)

# 获取内核版本信息
#kernel_version=$(cat /proc/version)
kernel_version=$(uname -v)
print_msg "系统内核版本及编译日期：$kernel_version"

print_msg "### 系统文件修改时间和大小"
for cmd in "${cmdline[@]}"; do
  # 使用which获取命令的实际路径
  full_path=$(which $cmd)
  if [ -n "$full_path" ]; then
    # 如果命令存在，获取修改时间并格式化
    mod_time=$(stat -c %y "$full_path" | cut -c1-19)
    # formatted_time=$(date -d "$mod_time" "+%Y-%m-%d %H:%M:%S")
    file_size=$(du -sh "$full_path" | cut -f1)
    print_msg "文件：$full_path\t修改日期：$mod_time\t文件大小：$file_size"
  else
    # 如果命令不存在，打印消息
    print_msg "命令 $cmd 不存在"
  fi
done

# 检查是否有file命令，如果有，获取文件类型信息
if command -v file >/dev/null 2>&1; then
  print_msg "### 系统文件类型"
  for cmd in "${cmdline[@]}"; do
    full_path=$(which $cmd)
    if [ -n "$full_path" ]; then
      file_type=$(file -b "$full_path")
    print_msg "文件：$full_path\t\t文件类型：$file_type"
  else
    print_msg "命令 $cmd 不存在"
  fi
done
else
  print_msg "系统无file命令，未检查系统文件类型"
fi