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新手看招:关于Linux系统下PATH设置方法

2011-04-27 10:53 302 查看
假设你要执行的程序路径在 /usr/my下

  export PATH=/usr/my:$PATH
  # .bashrc
  # User specific aliases and functions
  alias rm='rm -i'
  alias cp='cp -i'
  alias mv='mv -i'
  # Source global definitions
  if [ -f /etc/bashrc ]; then
  . /etc/bashrc
  fi
  export PATH=/usr/my:$PATH
  保存退出!
  [root@stroller root]# source .bashrc
  完整例子:
  [root@stroller root]# vi .bashrc
  # .bashrc
  # User specific aliases and functions
  alias rm='rm -i'
  alias cp='cp -i'
  alias mv='mv -i'
  # Source global definitions
  if [ -f /etc/bashrc ]; then
  . /etc/bashrc
  fi
  然后在 fi 后面加下面语句:
  export PATH=/root:$PATH
  加完后的 .bashrc 内容为:
  # .bashrc
  # User specific aliases and functions
  alias rm='rm -i'
  alias cp='cp -i'
  alias mv='mv -i'
  # Source global definitions
  if [ -f /etc/bashrc ]; then
  . /etc/bashrc
  fi
  export PATH=/root:$PATH
  //在命令行下输入 source .bashrc 执行 .bashrc 生效.
  [root@stroller root]# source .bashrc
  //查看PATH值:
  [root@stroller root]# echo $PATH
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