#!/bin/bash

echo export ORACLE_BASE=/u01/app/oracle >>.bash_profile

echo -e "export ORACLE_HOME=\$ORACLE_BASE/product/12c" >>.bash_profile     //echo -e 对特殊字符转义 \$  写入到文件 $

echo export ORACLE_SID=oracle12c >>.bash_profile

echo -e "PATH=\$PATH:$HOME/bin:\$ORACLE_HOME/bin:\$ORACLE_HOME/lib:\$ORACLE_HOME/lib64" >>.bash_profile

echo -e "LD_LIBRARY_PATH=\$ORACLE_HOME/bin:/usr/bin" >>.bash_profile

echo export NLS_LANG="AMERICAN_AMERICA.ZHS16GBK" >>.bash_profile

source ~/.bash_profile   //刷新用户环境变量

ECHO(1)                          User Commands                         ECHO(1)

NAME

       echo - display a line of text

SYNOPSIS

       echo [SHORT-OPTION]... [STRING]...

       echo LONG-OPTION

DESCRIPTION

       Echo the STRING(s) to standard output.

       -n     do not output the trailing newline   //不换行

       -e     enable interpretation of backslash escapes  //允许转义字符

#!/bin/bash

#desc init jdk env

cat >> ~/.bash_profile<<EOF

export ABC=/tmp

export abc=\$ABC/123

EOF

//结果

[root@lab- ~]# cat .bash_profile

# .bash_profile

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

    . ~/.bashrc

fi

# User specific environment and startup programs

export PATH=$PATH:$HOME/bin

export ABC=/tmp

export abc=$ABC/123