debian下，怎么ll命令注册

echo "alias ll='ls -l'" >> ~/.bashrc && source ~/.bashrc

echo "alias lh='ls -lh'" >> ~/.bashrc && source ~/.bashrc

查看目录

du -sh

查看磁盘

df -lh

echo "alias mysql203='/opt/soft/mysql/bin/mysql -uadmin -p123456 -h172.16.18.203'" >> ~/.bashrc && source ~/.bashrc