TLDR Search

Enter a command. For example: qrencode, pdftotext, skaffold.

sha1sum

Calculate SHA1 cryptographic checksums. More information: https://www.gnu.org/software/coreutils/sha1sum.

• Calculate the SHA1 checksum for a file:
   
  sha1sum {{path/to/file}}
   
• Calculate SHA1 checksums for multiple files:
   
  sha1sum {{path/to/file1}} {{path/to/file2}}
   
• Calculate and save the list of SHA1 checksums to a file:
   
  sha1sum {{path/to/file1}} {{path/to/file2}} > {{path/to/file.sha1}}
   
• Read a file of SHA1 sums and verify all files have matching checksums:
   
  sha1sum --check {{path/to/file.sha1}}
   
• Only show a message for missing files or when verification fails:
   
  sha1sum --check --quiet {{path/to/file.sha1}}
   
• Only show a message for files for which verification fails, ignoring missing files:
   
  sha1sum --ignore-missing --check --quiet {{path/to/file.sha1}}