探测局域网内有哪些机器
?#!/bin/bash
?# Change base address 192.168.0 according to your network.
?for ip in 192.168.142.{1..255} ;
?do
?? (
????? ping $ip -c2 &> /dev/null ;
????? if [ $? -eq 0 ];
????? then
????? echo $ip is alive
????? fi
?? )&
?? done
?
一次解压多个.tar.gz文件
find ./ -name ‘*.tar.gz‘ -exec tar zxvf {} ; -print
?
如何删去重复行并保持顺序不变?
awk ‘{ if (!seen[$0]++) { print $0; } }‘ $file_path
?
如何得到网卡的 MAC地址
?arp -a | awk ‘{print $4}‘
?
如何在编写SHELL显示多个信息,用EOF
cat << EOF
+--------------------------------------------------------------+
|???????? === Welcome to Tunoff services ===?????????????????? |
+--------------------------------------------------------------+
EOF
?
让 linux自动同步时间
?vi /etc/crontab
?加上一句:
?00 0 1 * * root rdate -s time.nist.gov
?
一句话快速查找PHP木马的方法
find ./ -name "*.php" -type f -print0|xargs -0 egrep "(phpspy|c99sh|milw0rm|eval(base64_decode|eval(gzinflate(base64_decode|eval(gzinflate(str_rot13(base64_decode|spider_bc)"|awk -F: ‘{print $1}‘|sort|uniq
?
按cpu利用率从大到小排列
ps -e? -o "%C? : %p : %z : %a"|sort? -nr
?
查看http的并发请求数及其TCP连接状态:netstat -n | awk ‘/^tcp/ {++S[$NF]} END {for(a in S) print a,S[a]}‘