How do I export a variable from one shell script to another?

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You basically have two options:

  1. Make the variable an environment variable ( export TESTVARIABLE ) before you run the 2nd script.
  2. Source the 2nd script, i.e. . test2. sh and it runs in the same shell.

How do I import a shell script into another shell script?

You can do this in several ways:

  1. Make the other script executable, add the line #!/bin/bash at the top and the file path to the $PATH environment variable. …
  2. Or call it with source command (alias is . ) …
  3. Or use bash command to run it: /bin/ bash/ path/to/ script

What is the export command in shell script?

The export command is a utility built into the Linux Bash shell. It is used to ensure that environment variables and functions are propagated to child processes. The export command allows us to update the current session on changes to the exported variable. …

How to export environment variables?

To export an environment variable, run the export command while setting the variable. We can see a full list of the exported environment variables by running the export command with no arguments. To view all exported variables in the current shell, use the p flag with export .

How do I run a shell script?

Steps to Write and Run a Script

  1. Open the terminal. Change to the directory where you want to create your script.
  2. Create a file with . extension sch.
  3. Write the script into the file using an editor.
  4. Make the script executable with the command chmod +x .
  5. Run the script with ./.

How to call a shell script from another shell script with parameters?

You can run a shell script like this:

  1. Invoke another shell with the name of your shell script as an argument: sh myscript.
  2. Load your script as a “point file” into the current shell: . myscript.
  3. Use chmod to make the shell script executable, then invoke it like this: chmod 744 myscript ./myscript.

What happens when we export a shell variable to bash?

When you export a variable, it places that variable in the current shell environment (i.e., the shell calls putenv(3) or setenv(3)). A process’s environment is inherited by exec, making the variable visible in subshells. 21

What does the export do in the terminal?

export makes a variable something to include in child process environments. Other existing environments are not affected. In general there is no way to set a variable in one terminal and have it appear automatically in another terminal, the environment is set up for each process.

How do I export a variable from a file?

How it works

  1. Create a temporary .
  2. Write all current values ​​of environment variables to the temporary file.
  3. Allows all variables declared in the source script to be exported to the environment.
  4. Read . …
  5. Disable the export of all variables declared in the source script to the environment.
  6. Read the contents of the temporary file.

How to export a variable in Linux?

For example, create the variable “vech” and give it the value “Bus”:

  1. vech=Bus. Display the value of a variable with echo, type:
  2. echo $vech Now start a new shell instance, type:
  3. bash . …
  4. echo $vech. …
  5. export backup=/nas10/mysql echo backup directory $backup bash echo backup directory $backup …
  6. export p.
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