pushd:tldr:015c7

The command "pushd ${path-to-directory}" is a command used in command-line interfaces to change the current directory to the specified directory and simultaneously push the current directory onto a stack.

Here's how it works:

• "pushd" is a command that allows you to change the current directory.
• "${path-to-directory}" is a placeholder that represents the actual path to the directory you want to change to. You need to replace it with the actual path.
• When the command is executed, it will change the current directory to the one specified in "${path-to-directory}".
• Simultaneously, it will push the current directory (the one you were in before executing the command) onto a stack. The stack allows you to save the current directory's location so that you can easily return to it later.
• The pushed directory becomes the new current directory.

To better understand the concept, consider the following example:

1. Let's assume your current directory is "home/documents".
2. When you execute "pushd /usr/local", the current directory will change to "/usr/local" (assuming it exists).
3. Simultaneously, the previous directory "home/documents" is pushed onto a stack.
4. Now, if you execute "pwd" (print working directory), it will display "/usr/local".
5. If you want to return to the previous directory, you can use the command "popd", and it will change the current directory back to "home/documents" (which was on the stack).

In summary, "pushd ${path-to-directory}" changes the current directory to the specified directory and saves the previous directory on a stack for later use.