Linux Bash

exec 31

All posts tagged exec 31 by Linux Bash

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March 2025

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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.

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