In Bash, you can check if a file exists using the test command or the equivalent [ command. The most common way to check if a file does not exist is by using the -e option, which tests whether a file exists. To check if a file does not exist, you can negate this option using !

In Bash, you can use the IFS (Internal Field Separator) variable to specify the delimiter and the read command to split a string into tokens based on that delimiter.

You can obtain the directory where a Bash script is located from within the script itself by using the $0 parameter, which contains the path to the script that is currently running, and the dirname command, which extracts the directory portion of the path.

Working with Bash script, we are in a need to check the existence of a directory. You can use the test command or its equivalent shorthand [ to check if a directory exists or not in a Bash shell script.

NVM (Node Version Manager) is a tool that allows you to manage multiple versions of Node.js on the same machine. It is possible that NVM is not working on Jenkins execute shell due to several reasons. Here are some troubleshooting steps that you can try:

NVM (Node Version Manager) is a useful tool for managing multiple versions of Node.js on a single machine. To set a default Node.js version, you can use the command: nvm alias default .

The nvm install latest -npm command installs the latest version of Node.js along with the latest version of npm. If you want to install a specific version of npm, you can use the npm option followed by the version number.