写个linux探测自己机器ip地址的tool(基于shell + expect)

apt-get install expect

#!/bin/bash

detect() {
ipv4=$1
username=$2
passwd=$3
echo "$1 $2 $3"
echo "$ipv4 $username $passwd"
/usr/bin/expect <<-EOF
set timeout 30
# puts "$1 $2 $3"
spawn ssh -p 22 $username@$ipv4 cat /etc/os-release
expect {
    "y/n" {
        send "y\r";
        exp_continue
    }
    "yes/no" {
        send "yes\r";
        exp_continue
    }
    "password:" {
        send "$passwd\r"
        expect eof
    }
}
EOF
}

mkdir log
# 使用seq命令生成从2到255的序列，然后用for循环遍历打印
for i in $(seq 2 255)
do
    detect 192.168.6.$i tmp tmp > log/$i.log &
done

admin@sr:/mnt/c/ssh$ grep -nir debian
log/124.log:5:PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
log/124.log:6:NAME="Debian GNU/Linux"
log/124.log:10:ID=debian
log/124.log:11:HOME_URL="https://www.debian.org/"
log/124.log:12:SUPPORT_URL="https://www.debian.org/support"
log/124.log:13:BUG_REPORT_URL="https://bugs.debian.org/"

很明显是192.168.6.124