sha1sum
Calculate SHA1 cryptographic checksums.
- Calculate the SHA1 checksum for a file:
sha1sum {{filename1}}
- Calculate SHA1 checksums for multiple files:
sha1sum {{filename1}} {{filename2}}
- Calculate and save the list of SHA1 checksums to a file:
sha1sum {{filename1}} {{filename2}} > {{filename.sha1}}
- Read a file of SHA1 sums and verify all files have matching checksums:
sha1sum --check {{filename.sha1}}
- Only show a message for files for which verification fails:
sha1sum --check --quiet {{filename.sha1}}