export JAVA_HOME=/usr/local/java
export PATH=$PATH:$JAVA_HOME/bin × PATH放在最前面錯誤
JAVA_HOME=/usr/local/java
PATH=$PATH:$JAVA_HOME/bin
export JAVA_HOME
export PATH × PATH放在最前面錯誤
JAVA_HOME=/usr/local/java
export JAVA_HOME
PATH="${JAVA_HOME}"/bin:"${PATH}" √
JAVA_HOME=/usr/local/java
export JAVA_HOME
PATH="${JAVA_HOME}"/bin:"${PATH}"
export PATH √
export JAVA_HOME=/usr/local/java
PATH="${JAVA_HOME}"/bin:"${PATH}"
export PATH √
export JAVA_HOME=/usr/local/java
export PATH=$JAVA_HOME/bin:$PATH √
export JAVA_HOME=/usr/local/java
PATH="${PATH}":"${JAVA_HOME}"/bin
export PATH × PATH放在最前面錯誤
export JAVA_HOME=/usr/local/java
export PATH=$JAVA_HOME/bin
export PATH=$PATH × 提示vi, vim之類的命令找不到程序
export JAVA_HOME=/usr/local/java
export PATH=$PATH
export PATH=$JAVA_HOME/bin × 提示vi, vim之類的命令找不到程序
export JAVA_HOME=/usr/local/resin
export JAVA_HOME=/usr/local/java
export PATH=$JAVA_HOME/bin:$PATH √
export JAVA_HOME=/usr/local/java
export JAVA_HOME=/usr/local/resin
export PATH=$JAVA_HOME/bin:$PATH × 會替換上面的數(shù)值
export JAVA_HOME=/usr/local/java
export JAVA_HOME=$JAVA_HOME:/usr/local/resin
export PATH=$JAVA_HOME/bin:$PATH × $xxx, 必須放在最后面
export JAVA_HOME=/usr/local/java
export JAVA_HOME=/usr/local/resin:$JAVA_HOME
export PATH=$JAVA_HOME/bin:$PATH √ 正確，$xxx是放在最后面
export JAVA_HOME=/usr/local/java
export JAVA_HOME=.:$JAVA_HOME:/usr/local/resin
export PATH=$JAVA_HOME/bin:$PATH × 加點也不行，必須放在最后面