What is the effect of adding `export PATH="$PATH:/new/path"` in a bash configuration file?

Adding export PATH="$PATH:/new/path" in a bash configuration file modifies the PATH environment variable by appending a new directory, specifically "/new/path", to the existing value of PATH. The PATH variable is crucial in Unix-like operating systems because it defines a list of directories that the shell searches when you type a command in the terminal. By including "/new/path", it allows the shell to look in that directory for executable files, enabling you to run programs stored there without specifying their full path.

The use of the export command ensures that this modification is not only made in the current shell session but is also made available to any child processes started from that session. Thus, whenever a command is executed, the shell will include "/new/path" in its search, enhancing the flexibility and accessibility of executables located in that directory.

In summary, the command effectively expands the search path for executables, facilitating user access to additional commands without needing to specify their precise locations.