工作中一些环境问题解决记录

1.MySQL不能被正常安装导致apt使用异常

卸载MySQL重新安装会出现如下问题：

出现该问题主要是安装MySQL前需要删除 /var/lib/mysql文件夹以及/etc/mysql文件夹
执行命令：

sudo rm /var/lib/mysql -R
sudo rm /etc/mysql -R
sudo apt-get autoremove mysql* --purge
sudo apt-get remove apparmor

2.删除远程分支

$ git push origin --delete demo

3.centos内核升级

参考：https://blog.janfou.com/technical-documents/11220.html

4.需要上传包到远程服务器（脚本）

# coding:utf-8
import os

import paramiko
import sys

# src_path = sys.argv[1]
# dest_path = sys.argv[2]

src_path = sys.argv[1]
dest_path = ".../UCBrowser.apk"
dest_path2 = ".../UCBrowser.apk"


# dest_path = "/tmp/UCBrowser.apk"

def connect():
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    try:
        ssh.connect('***', username='***', password='***', port=19922, allow_agent=True)
        return ssh
    except:
        return None


def _command(args, outpath):
    cmd = '%s %s' % (outpath, args)
    return cmd


def exec_commands(conn, cmd):
    stdin, stdout, stderr = conn.exec_command(cmd)
    results = stdout.read()
    return results


def copy_moddule(conn, src_path, dest_path):
    ftp = conn.open_sftp()
    ftp.put(src_path, dest_path)
    ftp.close()
    return dest_path


def excutor():
    conn = connect()
    if not os.path.isfile(src_path):
        print src_path + " not exist !!!, please check again."
        sys.exit(1)
    if not conn:
        return [None]

    # file copy
    copy_moddule(conn, src_path, dest_path)
    copy_moddule(conn, src_path, dest_path2)
    print "copy file succ!!!"

    # adb install apk
    result = exec_commands(conn, "adb install -r " + dest_path)
    print result


if __name__ == '__main__':
    excutor()

3.docker启动开启2375端口

ubuntu：

sudo vim /etc/default/docker
DOCKER_OPTS="-H=unix:///var/run/docker.sock -H=0.0.0.0:2375"

Centos：

sudo vim /etc/sysconfig/docker

  other_args='-Htcp://0.0.0.0:2375 -H unix:///var/run/docker.sock' #centos6下使用

  OPTIONS='-Htcp://0.0.0.0:2375 -H unix:///var/run/docker.sock'　　#centos7下使用

4.Mysql远程连接设置

mysql> use mysql;
Database changed
mysql> grant all privileges  on *.* to root@'%' identified by "root";
Query OK, 0 rows affected (0.00 sec)

 5.ubuntu磁盘清理

大文件过滤

find / -size +100M |xargs ls -lh

 6.Idea创建maven项目，生成jar时，提示“没有主清单属性”

创建：File->new->project->maven->GroupId:com.alex,ArtifaceId:mavendemo->project name:MvnDemo,finish->在main/java下创建Demo类->project structure->Artifacts->Jar->from module..->配置main class

用maven package时，会提示没有主清单，这时候改一下pom.xml即可

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.alex</groupId>
    <artifactId>mavendemo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!--<build>-->
        <!--<plugins>-->
            <!--<plugin>-->
                <!--<groupId>org.apache.maven.plugins</groupId>-->
                <!--<artifactId>maven-jar-plugin</artifactId>-->
                <!--<configuration>-->
                    <!--<archive>-->
                        <!--<manifest>-->
                            <!--<mainClass>Demo</mainClass>-->
                        <!--</manifest>-->
                    <!--</archive>-->
                <!--</configuration>-->
            <!--</plugin>-->
        <!--</plugins>-->
    <!--</build>-->
</project>

注释掉的即为增加的内容

7.ubuntu下载安装securecrt

下载：https://space.dingtalk.com/c/ggHaACQwZjRiNWM3Mi01NjYzLTRlMjgtOGQ4OC00NjVkMmVmYmQ2YTUCzhwy4JQ

http://www.cnblogs.com/yinchengzhe/p/5926645.html