自定义系统命令缩写|自定义系统命令缩写分类（ ubuntu 2013-...）自定义系统命令缩写分类：u

添加系统全局变量：
步骤1：使用root用户登录，在家目录下修改.bash_profile文件，查看结果如下：

[root@server132 ~]# more .bash_profile
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH
unset USERNAME
alias p='ps -ef|grep java'
alias rm='rm -i'
alias so='su - oracle'
alias sppd='/opt/jinrong/spider/bin/shutdown.sh'
alias sptm='/opt/jinrong/tomcat/bin/shutdown.sh'
alias stpd='/opt/xizang/spider/bin/startup.sh'
alias sttm='/opt/xizang/tomcat/bin/startup.sh'
alias tpd='tail -f /opt/jinrong/spider/logs/catalina.out'
alias ttm='tail -f /opt/xizang/tomcat/logs/catalina.out'

步骤2：