Linux命令使用

1.转换文件编码

iconv  -t utf-8 -f gb2312 -c  idx.html > new.html

2.机器间免登陆

#s1# ssh-keygen -t rsa (~/.ssh/id_rsa or id_rsa.pub)

#s1# scp ~/.ssh/id_rsa.pub root@s2:.ssh/id_rsa.pub

#s2# cat /root/.ssh/id_rsa.pub  >> /root/.ssh/authorized_keys

#s2# chmod 600 .ssh/authorized_keys

#s2# chmod 700 .ssh

3.Netstat查看网络连接状态统计

netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'

4.linux版本

rpm -q redhat-release

cat /etc/redhat-release

lsb_release -a

cat /proc/version

uname -a -r

5.用户与组

groupadd nexus
useradd -g nexus nexus
chown nexus:nexus -R   /usr/local/nexus-2.12.0-01
chown nexus:nexus -R   /data/sonatype-work/

6.ll按时间排序

ll －rt mcms＊ ｜grep "Jan 17"

7.Sed使用

sed 's/要替换的字符串/新的字符串/g'
sed -i '/匹配字符串/d'  filename  
sed -i '/匹配字符串/s/替换源字符串/替换目标字符串/g'  filename

8.查找最近修改的文件

find ./ -mtime 0 |grep -v xinwen 

9.Supervisord删除监听程序

/usr/bin/python /usr/bin/supervisord -c /etc/supervisord.conf
可参考：http://supervisord.org/

10.Ngx重启命令

kill -HUP `cat /usr/local/nginx/nginx.pid`  
/usr/local/nginx/sbin/nginx -s reload
/usr/local/nginx/sbin/nginx -t -c /usr/local/nginx/conf/nginx.conf

11.tsar监控机器指标