Linux命令

30 black
31 red
32 green
33 yellow
34 blue
35 purple
36 cyan
37 white
命令如：export GREP_OPTIONS='--color=auto' GREP_COLOR='31'
find . -type f -name ".log" | xargs grep --color -31 "申报"
find . -type f -name ".log" | xargs grep --colour -31 -n

find / -name "*.rpm" | xargs -i cp -a {} /opt

[root@lin10010 ~]# ls
nginx-1.14.0 openssl-1.0.2p redis-4.0.9.tar.gz
nginx-1.14.tar.gz pcre-8.41 zlib-1.2.11
nginx_upstream_check_module-master README
ngx_http_upstream_session_sticky_module redis-4.0.9
[root@lin10010 ~]# rm -rf ls | grep -v "README"
[root@lin10010 ~]# ls
README

find . -type f | xargs grep --colour -10 -n "文件"
find . -type f -exec grep --colour -10 -n "文件" {} \;

ps -ef | grep nginx | grep master | awk '{print $2}' | xargs kill

ps -ef |grep ssh | grep -v grep | awk '{print $2}'

批量创建用户
#!/bin/bash
j=1
for i in cat user.txt
do
useradd $i &> /dev/null
echo "$i用户已创建"
echo $(sed -n ''$j'p' passwd.txt) | passwd --stdin $i &> /dev/null
j=$(($j + 1))
echo "用户$i密码设置成功"
done

查看nginx连接的用户数量
netstat -pt | grep nginx

netstat -pt | grep nginx | grep worker

查看最多连接的一个
grep -n 'master' |awk '{print $4}'|uniq -c|sort -n | head -5

不切换用户使用命令
su -c 'netstat -apt | grep 1521' root