Where is export command in linux

We will execute the below command. This command is used to export the path of shell variables or the path of all applications in the system. As discussed above that, the path can be at the global or session-level.

Globally, presence is the one that is available either the server or the shell is in reboot condition. At the same time, the login session is only available in the current session. There will be no scope of a session if the server is rebooting. The software path can also be exported. To use the export command in your system, there is no need to install any package or any repository in your system.

To export a function, you first need to write a function in your command line with the unique function name. So that we can call the function easily. Once the function is exported, we can easily access it by calling the name of the function. Consider the following code. Here we have used name as the function.

In this function, we have just printed the name. Bash function is also exported here. The usage of the bash function is to open a new child shell to precede the function forward. Then type the name of the function. The output will be:. After applying the first command, you will see that no output is obtained, so for confirmation, we will use the grep command to export the variables if they are present.

It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. Why doesn't the whereis command give any information about the export command? How does the export command work even if the shell path variable is set to null? You can find it in the bash man page. As it's a builtin, not a binary, the shell doesn't search the PATH for it, so it will work regardless of the current path.

Incidentally, this is why you are advised to use type to see what is being executed when you give a command:. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. Where does the "export" command come from? Ask Question. Without any arguments, the command will generate or display all exported variables.

Below is an example of the expected output. If you wish to view all exported variables on the current shell, use the -p flag as shown in the example. Suppose you have a function and you wish to export it, how do you go about it? In this case , the -f flag is used. In this example, we are exporting the function name. The above can be achieved in 2 simple steps by declaring and exporting the variable in one line as shown. This concludes our tutorial about export command.

Go ahead and give it a try and see the magic! Your feedback is most welcome.