commit f34792c223d483c2b0436f4c9b384e2bb0d9fb5f
Author: luzt98 <luzt98@163.com>
Date:   Wed Oct 11 17:55:32 2023 +0800

    初始化仓库，上传初版文件

diff --git a/pingctrl.sh b/pingctrl.sh
new file mode 100644
index 0000000..3c2f360
--- /dev/null
+++ b/pingctrl.sh
@@ -0,0 +1,44 @@
+#!/bin/sh
+CheckIPAddr()
+{
+        echo ${1} | grep "^[0-9]\{1,3\}\.\([0-9]\{1,3\}\.\)\{2\}[0-9]\{1,3\}$" > /dev/null;
+        if [ $? -ne 0 ] ;then
+                return 1
+        fi
+        ipaddr=${1}
+        a=$( echo ${ipaddr} | awk -F . '{print $1}' )
+        b=$( echo ${ipaddr} | awk -F . '{print $2}' )
+        c=$( echo ${ipaddr} | awk -F . '{print $3}' )
+        d=$( echo ${ipaddr} | awk -F . '{print $4}' )
+        for num in ${a} ${b} ${c} ${d} ; do
+                if [ ${num} -gt 255 ] || [ ${num} -lt 0 ]; then
+                        return 1
+                fi
+        done
+        return 0
+}
+
+main()
+{
+    if [ $# -lt 4 ];then
+        echo "Usage: ./pingctrl.sh <ip> <count> <interval> <timeout>"
+        return 1
+    fi
+    CheckIPAddr ${1}
+    if [ $? -ne 0 ];then
+        echo 'the IP address is illegal'
+        return 1
+    fi
+    while :
+    do
+        ping $1 -c $2  -W $4 > /dev/null;
+        if [ $? -ne 0 ];then
+            echo "host are not reachable"
+            reboot
+            break;
+        fi
+        sleep $3
+    done
+}
+
+main $@
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diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..d2397f4
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,31 @@
+# TOOLS
+
+保存一些杂项，系统调试脚本
+
+## 1.pingctrl.sh
+
+功能：循环Ping给定主机ip，若出现ping失败则立即重启系统。
+用法： pingctrl.sh `<ip>` `<count>` `<interval>` `<timeout>`
+参数说明：
+	ip: 要ping的远程主机ip
+	count: 每次要Ping的次数，只要有一次成功就视为ping成功
+	interval: 每次ping的时间间隔（单位：秒）
+	timeout: 超时时间（单位：秒）
+
+## 2.remote-reboot.py
+
+功能：使用telnet登录远程主机并发送一条reboot命令，连接成功返回0，失败返回-1
+
+用法： python3 remote-reboot.py `<ip> <port> <username> <passwd>`
+
+参数说明：
+
+    ip: 连接的远程主机ip 默认192.168.10.100
+
+    port: telnet连接端口号 默认 23
+
+    username: 登录用户名 默认 root
+
+    passwd: 密码 默认 root
+
+脚本未对参数进行校验，传参时可以只传入ip和端口号，此时脚本会用默认的用户密码进行连接。但如果需要修改用户名密码，无论ip和端口号是否是默认值，都需要手动传入。
diff --git a/remote-reboot.py b/remote-reboot.py
new file mode 100644
index 0000000..3730a22
--- /dev/null
+++ b/remote-reboot.py
@@ -0,0 +1,62 @@
+import telnetlib
+import sys
+
+HOST = "192.168.10.100"
+PORT = 23
+USERNAME = "root"
+PASSWORD = "root"
+
+def main(argv):
+    host = HOST
+    port = PORT
+    username = USERNAME
+    passwd = PASSWORD
+    if len(argv) > 2 :
+        host = argv[1]
+        port = argv[2]
+        if len(argv) > 4:
+            username = str(argv[3])
+            passwd = str(argv[4])
+    # 创建 Telnet 对象并连接远程主机
+    tn = telnetlib.Telnet(host, port)
+    print(tn.host)
+
+    # 匹配登录提示并发送用户名
+    tn.read_until(b"login: ")
+    tn.write(username.encode('ascii') + b"\r\n")
+
+    # 匹配密码提示并发送密码
+    tn.read_until(b"Password: ")
+    tn.write(passwd.encode('ascii') + b"\r\n")
+
+    # 匹配登录后的提示符
+    prompt = "#"
+    match_index, _, _ = tn.expect([prompt.encode('ascii')], timeout=5)
+
+    # 判断是否成功匹配
+    if match_index != -1:
+        print("登录成功！")
+    else:
+        print("登录失败！")
+        return -1
+    
+    # 连接成功后，可以继续与远程主机进行交互
+    # 例如，发送命令并接收输出
+    tn.write(b"reboot\r\n")
+    try:
+        command_output = b""
+        while True:
+            line = tn.read_until(b"\n")
+            command_output += line
+            if b"expected_output" in line:
+                break
+        print(command_output.decode("utf-8"))
+    except Exception as e:
+        print(e)
+    
+    # 关闭 Telnet 连接
+    tn.close()
+    return 0
+
+if __name__ == "__main__":
+    main(sys.argv)
\ No newline at end of file