Tools Practical By Samson Tanimawo, PhD Published May 25, 2026 4 min read

Git Bisect as a Debugging Tool

Find the commit that broke production. The bisect workflow, with examples.

Setup

git bisect start; git bisect bad HEAD; git bisect good .

Now bisect picks midpoint commits.

git bisect run script.sh automates the test.

Script returns 0 if good, 1 if bad. Bisect converges.

git bisect reset to clean up.

The bad commit is identified; the diff is the bug.