Linux Bash

redirect

All posts tagged redirect by Linux Bash

Posted on

March 2025

Featured Image

Use `exec 3>&1` to redirect a subshell’s output to a parent’s fd

bash exec 31 file descriptor redirect subshell output

The blog explores using `exec 3>&1` in Bash for redirecting subshell output to a parent's file descriptor, enhancing script flexibility and debug capabilities. It covers basics of file descriptors, provides examples, and discusses the advantages of capturing and displaying output simultaneously for debugging and logging.

Open article