sha256sum — Display and save outputIT technician command center
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sha256sum — Display and save output

Display output while saving it to a file. Base task: Calculate a SHA-256 checksum.

Copy-ready commandsha256sum — Display and save output
sha256sum installer.iso 2>&1 | tee command-results.txt

Requirements and permissions

Requirements
Linux with the referenced utility installed
Permissions
Use sudo or root only when required
Last reviewed
2026-08-01

Examples

Display and save output

Display output while saving it to a file.

sha256sum installer.iso 2>&1 | tee command-results.txt

Common errors

Command or option not supported

Confirm the installed platform version supports the base command and the added output or wrapper option.

Access denied or insufficient privileges

Run with the administrative role or delegated permission required by the underlying command.