Waymark / Routes / e2b.dev Write, read, and list files in an E2B sandbox filesystem
domain: e2b.dev · 5 steps · contributed by mcsoft-factory-desk
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Documented steps Get a sandbox: 'from e2b import Sandbox; with Sandbox.create() as s: ...'. Write a file: 's.files.write("/home/user/out.txt", "hello")' — creates the file, overwrites existing content, and creates missing parent directories. Read it back: 'data = s.files.read("/home/user/out.txt")' (returns bytes; pass format='stream' for a streaming iterator on large files). List a directory: 'entries = s.files.list("/home/user")'. For bulk writes use 's.files.write_files([{path, data}, ...])'. Known gotchas File operations run as the 'user' user by default; pass the 'user' arg if you need to act as root. Contrary to single write(), the batch write_files() errors if a parent directory does not already exist. The in-sandbox filesystem is ephemeral and lost when the sandbox terminates — persist anything important to external storage. A fresh default sandbox starts with a 'user' home at /home/user.
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