The Work Gym

Courses / Developer tools

Git

From your first snapshot to team delivery and recovery.

Start lesson 1 Practice interview Take the assessmentPractice the first unit of every course. No account needed.

60lessons

324checked exercises

12projects, cases and exams

Prepares you for Software team workflows and technical interviews

Projects, case studies and mock exams

Project · IntermediateReview-ready feature delivery

Deliver a small route feature from a baseline to an approved review.

6 steps · 40 min Case study · AdvancedRejected team push

Investigate a rejected team push in an original team repository.

5 steps · 30 min Project · AdvancedAuditable shared rollback

Repair a shared route without deleting its original commit.

6 steps · 40 min Case study · ExpertConflicting route changes

Investigate a conflicting route changes in an original team repository.

5 steps · 30 min Project · ExpertRecovered release handoff

Recover an unpublished route that lost its branch reference during a reset.

6 steps · 40 min Case study · ExpertLost branch tip

Investigate a lost branch tip in an original team repository.

5 steps · 30 min Case study · ExpertFirst bad release change

Investigate a first bad release change in an original team repository.

5 steps · 30 min Mock exam · ExpertTimed screen: team workflow

Deliver an original practical result while preserving the requested history.

8 questions · 40 min Mock exam · ExpertTimed screen: history recovery

Deliver an original practical result while preserving the requested history.

8 questions · 40 min

Practice Git on a working local filesystem and an explicit commit graph. Learn the index, snapshots and inspection before creating branches, integrating divergent work and resolving conflicts. Work with a simulated remote and review flow, handle rejected pushes, and choose carefully among reset, revert and history editing. Recover lost commits with the reflog and locate a regression with bisect. Fresh practice, cumulative projects, interview banks and timed practical screens check the resulting history and files rather than a memorized command sequence.

Beginner

First snapshots

Practice git init, git add, git commit in realistic local tasks.

4 lessons

1Repository creationUse git init to inspect or produce the requested state.4 exercises · 16 minFree

2The index and selected filesUse git add to inspect or produce the requested state.4 exercises · 16 minFree

3Commits and messagesUse git commit to inspect or produce the requested state.4 exercises · 16 minFree

Practice setFirst snapshots practiceCombine the unit's commands on fresh data without a prescribed command sequence.Free

Inspection boundaries

Practice git status, git diff, git log in realistic local tasks.

4 lessons

5Working tree and index statesUse git status to inspect or produce the requested state.4 exercises · 16 minWith a plan

6Working, staged and historical diffsUse git diff to inspect or produce the requested state.4 exercises · 16 minWith a plan

7History and commit graphsUse git log to inspect or produce the requested state.4 exercises · 16 minWith a plan

Practice setInspection boundaries practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Selective snapshots

Practice gitignore, git add -p, git commit --amend in realistic local tasks.

4 lessons

9Ignore rules and tracked filesUse gitignore to inspect or produce the requested state.4 exercises · 16 minWith a plan

10Partial staging and hunk choicesUse git add -p to inspect or produce the requested state.4 exercises · 16 minWith a plan

11Amending unpublished commitsUse git commit --amend to inspect or produce the requested state.4 exercises · 16 minWith a plan

Practice setSelective snapshots practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Intermediate

Branch context

Practice git branch, git switch, git checkout in realistic local tasks.

4 lessons

13Branch referencesUse git branch to inspect or produce the requested state.4 exercises · 16 minWith a plan

14Feature branch creationUse git switch to inspect or produce the requested state.4 exercises · 16 minWith a plan

15Existing branches and file stateUse git checkout to inspect or produce the requested state.4 exercises · 16 minWith a plan

Practice setBranch context practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Integration

Practice git merge --ff-only, git merge, Merge conflicts in realistic local tasks.

4 lessons

17Fast-forward integrationUse git merge --ff-only to inspect or produce the requested state.4 exercises · 16 minWith a plan

18Three-way mergesUse git merge to inspect or produce the requested state.4 exercises · 16 minWith a plan

19Conflict resolutionUse Merge conflicts to inspect or produce the requested state.4 exercises · 16 minWith a plan

Practice setIntegration practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Work in progress

Practice git stash, git restore, git tag in realistic local tasks.

5 lessons

21Stashes and unfinished workUse git stash to inspect or produce the requested state.4 exercises · 16 minWith a plan

22Discarding one working editUse git restore to inspect or produce the requested state.4 exercises · 16 minWith a plan

23Release tagsUse git tag to inspect or produce the requested state.4 exercises · 16 minWith a plan

ProjectReview-ready feature deliveryDeliver a small route feature from a baseline to an approved review.With a plan

Practice setWork in progress practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Advanced

Remote updates

Practice git clone, git fetch, git pull in realistic local tasks.

4 lessons

26Clones and remote identityUse git clone to inspect or produce the requested state.4 exercises · 16 minWith a plan

27Fetch and remote-tracking evidenceUse git fetch to inspect or produce the requested state.4 exercises · 16 minWith a plan

28Pull and fast-forward updatesUse git pull to inspect or produce the requested state.4 exercises · 16 minWith a plan

Practice setRemote updates practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Team delivery

Practice git push, git push -u, Pull requests in realistic local tasks.

5 lessons

30Pushes and rejected updatesUse git push to inspect or produce the requested state.4 exercises · 16 minWith a plan

31Upstream branchesUse git push -u to inspect or produce the requested state.4 exercises · 16 minWith a plan

32Pull-request review flowUse Pull requests to inspect or produce the requested state.4 exercises · 16 minWith a plan

Case studyRejected team pushInvestigate a rejected team push in an original team repository.With a plan

Practice setTeam delivery practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Reset choices

Practice git reset --soft, git reset --mixed, git reset --hard in realistic local tasks.

5 lessons

35Soft reset and staged snapshotsUse git reset --soft to inspect or produce the requested state.4 exercises · 16 minWith a plan

36Mixed reset and unstagingUse git reset --mixed to inspect or produce the requested state.4 exercises · 16 minWith a plan

37Hard reset and deliberate discardUse git reset --hard to inspect or produce the requested state.4 exercises · 16 minWith a plan

ProjectAuditable shared rollbackRepair a shared route without deleting its original commit.With a plan

Practice setReset choices practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Expert

History changes

Practice git rebase, git rebase -i, git revert in realistic local tasks.

5 lessons

40Rebasing a feature branchUse git rebase to inspect or produce the requested state.4 exercises · 16 minWith a plan

41Interactive history editingUse git rebase -i to inspect or produce the requested state.4 exercises · 16 minWith a plan

42Reverting shared changesUse git revert to inspect or produce the requested state.4 exercises · 16 minWith a plan

Case studyConflicting route changesInvestigate a conflicting route changes in an original team repository.With a plan

Practice setHistory changes practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Recovery

Practice git cherry-pick, git reflog, Detached HEAD in realistic local tasks.

6 lessons

45Selective commit transferUse git cherry-pick to inspect or produce the requested state.4 exercises · 16 minWith a plan

46Recovery with the reflogUse git reflog to inspect or produce the requested state.4 exercises · 16 minWith a plan

47Detached inspection and saved workUse Detached HEAD to inspect or produce the requested state.4 exercises · 16 minWith a plan

ProjectRecovered release handoffRecover an unpublished route that lost its branch reference during a reset.With a plan

Case studyLost branch tipInvestigate a lost branch tip in an original team repository.With a plan

Practice setRecovery practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan

Diagnosis and release

Practice git bisect, git blame, Tags and history review in realistic local tasks.

10 lessons

51The first bad commitUse git bisect to inspect or produce the requested state.4 exercises · 16 minWith a plan

52Line history and attributionUse git blame to inspect or produce the requested state.4 exercises · 16 minWith a plan

53Release verificationUse Tags and history review to inspect or produce the requested state.4 exercises · 16 minWith a plan

Case studyFirst bad release changeInvestigate a first bad release change in an original team repository.With a plan

Interview setEasyDeliver an original practical result while preserving the requested history.With a plan

Interview setMediumDeliver an original practical result while preserving the requested history.With a plan

Interview setHardDeliver an original practical result while preserving the requested history.With a plan

Mock examTimed screen: team workflowDeliver an original practical result while preserving the requested history.With a plan

Mock examTimed screen: history recoveryDeliver an original practical result while preserving the requested history.With a plan

Practice setDiagnosis and release practiceCombine the unit's commands on fresh data without a prescribed command sequence.With a plan