Save the file to your home directory with the name environment. Make sure a. Quit TextEdit, and launch a Terminal window. Enter pwd to make sure you are in your home directory.
Set JAVA_HOME on Windows 7, 8, 10, Mac OS X, Linux
To move the environment. MacOSX directory, enter mv environment. Log out and log in again. The procedure for setting an environment variable depends on what your default shell is. Depending on the output of the previous step, do one of the following:.
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Launch Terminal or a shell. In the command window that opens, enter set. Click the Environment Variables button. The Environment Variables dialog opens. Click the New button under either User variables or System variables , depending on whether you want to set the variable for the current user or all users. To set environment variables for all users, you need to have administrator privileges. In the Variable name field, enter the name of the environment variable you want to set.
In the Variable value field, enter the value for the variable. The value can be a directory path, for example. Open a Terminal window.
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By default, you should be in your home directory your own directory in the Users folder. Enter pwd present working directory to verify this. All Files.
You are here:. Local variables available to the current process only are in lowercase. Under bash shell:.
Environment and registry variables
Take note that files beginning with dot. To display hidden files, use command " ls -a " or " ls -al ". For example,. Take note that Bash shell uses colon : as the path separator; while windows use semi-colon ;.
To refresh the bash shell, issue a " source " command or re-start the bash shell :. Notes For the older csh C-shell and ksh Korn-shell.
Python - Environment Setup
When you launch a program from the command line, the operating system uses the PATH environment variable to search for the program in your local file system. In other words, PATH maintains a list of directories for searching executable programs.
When you launch an executable program with file extension of ". If the program cannot be found in these directories, you will get the following error:.
For example, if Java Compiler " javac. PATH maintains a list of directories. The directories are separated by semi-colon ';'. This is because some older Windows systems provide their own Java runtime which is often out-dated in these directories try search for " java. But as PATH is frequently used, a dedicated command called path is provided. In Windows, the current working directory '.