The qsv CLI tool
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Run qsv on large files and use commands, subcommands, arguments, and options that may be disabled on this site. Click here to check it out on GitHub
Write duplicates to <file>.
-j, --jobs <arg>
The number of jobs to run in parallel when sorting an unsorted CSV, before deduping. When not set, the number of jobs is set to the number of CPUs detected. Does not work with --sorted option as its not multithreaded.
-o, --output <file>
Write output to <file> instead of stdout.
Do not print duplicate count to stderr. This is useful when piping the output to another command.