How to find and fix Bash Shell-shock vulnerability CVE-2014-6271 in unix like system

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type command - env x=‘() { :;}; echo vulnerable‘ bash -c ‘echo hello‘in your terminal. if your system is vulnerable then above command will return output like abovevulnerable hello all the Debian /Ubuntu user to patch it kindly update your bash to latest versionrun bash --version command to know your currently installed version
run- sudo apt-get update && sudo apt-get install –only-upgrade bashif your system is alread updated then just simply upgrade your bash version by running this command  sudo apt-get install --only-upgrade bash  http://vtechcoder.blogspot.in/2014/09/how-to-find-and-fix-bash-shell-shock.html

How to find and fix Bash Shell-shock vulnerability CVE-2014-6271 in unix like system