Can a shell script set environment variables of the calling shell? [duplicate]

by

Use the “dot space script” calling syntax. For example, here’s how to do it using the full path to a script:

. /path/to/set_env_vars.sh

And here’s how to do it if you’re in the same directory as the script:

. set_env_vars.sh

These execute the script under the current shell instead of loading another one (which is what would happen if you did ./set_env_vars.sh). Because it runs in the same shell, the environmental variables you set will be available when it exits.

This is the same thing as calling source set_env_vars.sh, but it’s shorter to type and might work in some places where source doesn’t.

More Related Contents:

  1. How to determine the current interactive shell that I’m in (command-line)
  2. Expansion of variables inside single quotes in a command in Bash
  3. Reading quoted/escaped arguments correctly from a string
  4. An example of how to use getopts in bash
  5. How can I repeat a character in Bash?
  6. How can I declare and use Boolean variables in a shell script?
  7. Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
  8. Automatic exit from Bash shell script on error [duplicate]
  9. Ubuntu says “bash: ./program Permission denied” [closed]
  10. YYYY-MM-DD format date in shell script
  11. How to suppress Terminated message after killing in bash?
  12. Get current directory name (without full path) in a Bash script
  13. How do I redirect output to a variable in shell? [duplicate]
  14. What do $? $0 $1 $2 mean in shell script? [duplicate]
  15. Division in script and floating-point
  16. Copy folder recursively, excluding some folders
  17. Variable interpolation in the shell
  18. How to remove filename prefix with a Posix shell
  19. What does ” 2>&1 ” mean?
  20. How do I read user input into a variable in Bash?
  21. Why do I get “/bin/sh: Argument list too long” when passing quoted arguments?
  22. Count number of lines in a git repository
  23. How do I check if a directory exists or not in a Bash shell script?
  24. Validate date format in a shell script
  25. shell script respond to keypress
  26. Temporarily change current working directory in bash to run a command [duplicate]
  27. How to break out of a loop in Bash?
  28. How to tell if a string is not defined in a Bash shell script
  29. BASH: Writing a Script to Recursively Travel a Directory of N Levels
  30. How to grep for case insensitive string in a file?

Leave a Comment