linux寫環境變量對字符轉義
阿新 • • 發佈:2018-10-01
port pes ron commands java echo -e func b- rar
之前在配置oracle環境換了或者jdk環境,用腳本初始化配置,發現$JAVA_HOME被真實路徑取代,這不操蛋嗎,今天無意間發現echo -e可以轉義特殊字符
得之興業,歲在今朝!
-
對oracle賬戶下oaclle單實例數據庫變量的設置
#!/bin/bash echo export ORACLE_BASE=/u01/app/oracle >>.bash_profile echo -e "export ORACLE_HOME=\$ORACLE_BASE/product/12c" >>.bash_profile //echo -e 對特殊字符轉義 \$ 寫入到文件 $echo export ORACLE_SID=oracle12c >>.bash_profile echo -e "PATH=\$PATH:$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 //刷新用戶環境變量
-
官方對echo解釋
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 //不換行 -e enable interpretation of backslash escapes //允許轉義字符
-
Linux直接轉義特殊字符
#!/bin/bash #desc init jdk env cat >> ~/.bash_profile<<EOF export ABC=/tmp export abc=\$ABC/123 EOF //結果 [root@lab-120 ~]# 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
linux寫環境變量對字符轉義