Using set -x Wisely

Updated

October 31, 2026

Using set -x Wisely

Wrap suspicious code sections selectively:

set -x # Enable tracing
risky_function "$param"
set +x # Disable tracing

Customize trace prefix for debugging source files and line numbers:

export PS4='+ ${BASH_SOURCE}:${LINENO}: ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'