Load functions from a trusted local script.
Bash Scripts: Source executes a file in the current shell so its function definitions remain available.
set -euo pipefail
source ./library.sh
greet AdaExpected output EXAMPLE
Hello Ada
Details
Requires Bash 4 or later. Save as snippet.sh and run bash snippet.sh in an empty working directory. Source executes a file in the current shell so its function definitions remain available.
Only source files you trust; sourcing can change variables, shell options, and the working directory.
Tested on Ubuntu 24.04.5 LTS · · GNU bash, version 5.2.21(1)-release (x86_64-pc-linux-gnu) · bash 5.2.21-2ubuntu4; coreutils 9.4-3ubuntu6.3
Test inputs, results and environment
The exact published code ran in a dedicated Linux test container with prepared inputs. Snippet process uid 65534 with a read-only root filesystem and temporary working files. Networking disabled. Fixtures and output records are isolated from the application database. Testing covers this example and its stated checks, not every input, operating system, or runtime version. The Linux container shares its host's kernel; this is not a native Windows test.
- Architecture / host kernel
- x86_64 / 6.18.54.1-microsoft-standard-WSL2
- Snippet identity / locale
- uid=65534, gid=65534 (unprivileged process) / C.UTF-8
- Interpreter invocation
bash -euo pipefail -c <published code>- Container image ID
sha256:ec91410a8f6ec3e985830b5e3a0560306d36f8c1c5ccd91a6699abe707123fa3- Code SHA-256
bfaf34303b5eca084fde87871448378b4f0f23525f01b9aa03cea37d3647451e- Dependencies
- bash 5.2.21-2ubuntu4; coreutils 9.4-3ubuntu6.3
Test input setup
These are the prepared inputs used by the test harness. See Details above for the prerequisites and how to run this example.
cat > library.sh <<'SCRIPT'
greet() { printf 'Hello %s\n' "$1"; }
SCRIPT
Observed standard output
Hello Ada
Exit code: 0. Standard error: empty. Validation: Exact stdout comparison. System-dependent values above are one recorded run.