How to add an environment variable permanent in Redhat Linux

You can add an environment variable using the export command. But you can see that once you logout, the parameters you added wont be there. So inorder to add those variables permanently after adding the variable using export command, for example

[root@server ~]# export LD_LIBRARY_PATH=/usr/lib/oracle/12.1/client64/lib:/usr/lib:/usr/lib64:


 we need to add the same command line in the file /etc/profile or /etc/bashrc  so that it will make the variable permanent for all users. If the change is neeed only for the current user annd the command in the .bashrc file inside the home folder of the current user.

Comments

Post a Comment

Popular posts from this blog

CDbConnection failed to open the DB connection mysql 8

Image
While accessing web configured with mysql 8 and php and you see the following error: CDbConnection failed to open the DB connection: SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client OR  PHP Fatal error:  Uncaught PDOException: PDO::__construct(): The server requested authentication method unknown to the client [caching_sha2_password]  It maybe due to  PHP devs might have not implemented the MySQL's 8.0 connection protocol ( auth with caching_sha2_password ) within the newer PHP versions. If you want to use mysql >= 8 and you dont care about caching_sha2_password,  If you are running a fresh install of mysql 8, just select the second option as shown in the image. Otherwise, you need to  configure MySQL 8.0 to run in mysql_native_password mode. As it can't configured in my.cnf, change the user profile as:- ALTER USER 'mysqlUsername'@'localhost' IDENTIFIED WITH mysql_native_password BY 'mysqlUse
Read more

/bin/sh^M: bad interpreter: No such file or directory Linux

While running a script in Linux, if you encounter an error such as : /bin/sh^M: bad interpreter: No such file or directory The error is due to incorrect format of the script. Most probably when the script is created in Windows and transferred to Linux. The script might have a dos line ending file. The clue is the ^M Inorder to resolve this error: Open the script in Linux using vim editor,  enter in vi command mode (key ESC), then type this: : set fileformat = unix   Finally save it :x! or :wq! Thats it! Try running the script again and the error would have disappeared.  
Read more