$clihub

shasum

CLI

Compute and verify SHA checksums. Ships with Perl on macOS and Linux.

One checksum command that exists on both macOS and Linux (sha256sum does not exist on macOS)

2 of 2 recipes verified by execution · 2026-09-17#sha256#checksum#verify#hash

Verified commands

Executed by our harness on the platforms shown; the assertion checked the actual result, not just the exit code.

SHA-256 of a file

Verified macOS · Linux · 2026-09-17
shasum -a 256 file.txt
Common failures (1)
  • sha256sum: command not found (macOS)macOS has no sha256sum; shasum -a 256 works on both OSes

Verify a file against an expected SHA-256

Verified macOS · Linux · 2026-09-17
echo 'EXPECTED_HEX  file.txt' | shasum -a 256 -c
Common failures (1)
  • shasum: standard input: no properly formatted checksum lines foundtwo spaces between the hash and the filename are required

Install

aptsudo apt install perl

Agent notes

When to use
Verifying a downloaded artifact against a published SHA-256
Quick examples
  • shasum -a 256 file.txt
  • shasum -a 256 -c SHA256SUMS

Use from an agent

curl -s https://clihub.com/api/tools/shasum | jq '.agentHints.provenRecipes[] | {task, command, verified}'

Or call get_tool with slug shasum on the MCP server at https://clihub.com/mcp.

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