GIT · Foundations · 10 min

Record a script as executable

Store executable permission in Git’s index, including on Windows.

Not completed

Your task

Record check.sh with Git mode 100755 and commit only that permission change. Preserve the script text.

What you’re aiming for

git ls-files --stage reports mode 100755.
The last change is a mode change, not a content edit.

1. Prepare your practice folder

Use Git 2.28 or newer. The setup commands below use a Bash-compatible shell: Git Bash on Windows, or Bash on Linux/macOS.

Create a new, empty folder for this exercise. If that name already exists, choose another new name. Continue only after you’re inside the new folder.

NEW PRACTICE FOLDER

mkdir opsrung-git-record-executable-bit && cd opsrung-git-record-executable-bit

Run these setup commands in that folder:

SETUP — RUN ONCE

git init --initial-branch=main
git config --local user.name 'Practice Learner'
git config --local user.email 'practice@example.invalid'
printf '%s\n' 'A disposable OpsRung practice repository.' > README.txt
git add -- README.txt
git commit -m 'Start practice'
printf '%s\n' '#!/bin/sh
printf "ready\n"' > check.sh
git add check.sh
git update-index --chmod=-x check.sh
git commit -m 'Add non-executable check script'

Only if your personal Git settings interfere

You can normally skip this. If a commit asks for a signing key, runs a custom hook, or changes line endings unexpectedly, these repository-local overrides keep this disposable exercise independent of those settings.

OPTIONAL REPOSITORY OVERRIDES

git config --local commit.gpgsign false
git config --local core.autocrlf false
git config --local core.hooksPath .git/practice-no-hooks

Retry the failed command afterward. These settings apply only inside this practice repository.

2. Try the task

Work toward the goal above. Start by inspecting the files or resources, then use a hint if you need one.

Hint 1

Filesystem permissions and Git’s index can differ on Windows.

Hint 2

git update-index can record the executable bit.

Hint 3

Use --chmod=+x for the tracked script, then commit.

3. Review your result

Use these commands to look at your result and compare it with the goals. The website does not run or verify them.

REVIEW IN YOUR TERMINAL

git ls-files --stage check.sh
git show --summary HEAD
git status

What you should see

git ls-files --stage reports mode 100755.
The last change is a mode change, not a content edit.

If your result differs: Work only in this exercise’s repository. Compare the branch, files, and history with every goal before marking complete.

Compare with one possible solution

ONE POSSIBLE SOLUTION — BASH

git update-index --chmod=+x check.sh
git commit -m 'Mark check script executable'

Other approaches are fine if you reach the same goal. Opening this solution does not mark the exercise complete.

Finished this exercise?

You decide when you’re done. Your choice is saved in this browser, and you can change it later.