123456789101112131415$ opensslOpenSSl> genrsa -out private_key.pem 2048Generating RSA private key, 2048 bit long modulus....................+++..................................

1、更新已安装的软件123sudo apt-get updatesudo apt-get upgrade -ysudo apt-get dist-upgrade 2、移除不需要的软件1sudo apt-get autoremove 3、安装更新管理1sudo apt-get install update-manager-core 4、开始更新系统1su...

Check current shell: 123# echo $SHELL/bin/sh Change shell to /bin/bash: 1# usermod -s /bin/bash <username>

This is my first blog, I’m not sure whether is better or not. but this is for my best now… I’m very like Python and Linux, but I also wish get a chance to do it in workingenvert...