coproc

The blog explains the usage of `coproc` in Bash for creating asynchronous processes, allowing two-way communication between parent and child processes via shared file descriptors. Demonstrations include scripts for real-time data transformation and continuous number addition, highlighting `coproc` as a tool for enhancing script performance in data processing and monitoring tasks.

The article discusses the `coproc` keyword in Bash, which was introduced in version 4.0 for bidirectional communication with subprocesses, allowing dynamic two-way data exchanges. This enhances script functionality by enabling complex operations such as text processing and real-time calculations, demonstrated with use cases like an echo server using `cat` and arithmetic operations with `bc`.