miller
tsv-utils
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miller | tsv-utils | |
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63 | 9 | |
8,510 | 1,396 | |
- | 0.6% | |
9.1 | 0.0 | |
8 days ago | over 1 year ago | |
Go | D | |
GNU General Public License v3.0 or later | Boost Software License 1.0 |
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miller
- Qsv: Efficient CSV CLI Toolkit
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jq 1.7 Released
jq and miller[1] are essential parts of my toolbelt, right up there with awk and vim.
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Perl first commit: a “replacement” for Awk and sed
> This works really well if your problem can be solved in one or two liners.
My personal comfort threshold is around the 100-line mark. It's even possible to write maintainable shell scripts up to 500 lines, but it mostly depends on the problem you're trying to solve, and the discipline of the programmer to follow best practices (use sane defaults, ShellCheck, etc.).
> It go bad very quickly when, say, you have two CSV files and want to join them the sql-way.
In that case we're talking about structured data, and, yeah, Perl or Python would be easier to work with. That said, depending on the complexity of the CSV, you can still go a long way with plain Bash with IFS/read(1) or tr(1) to split CSV columns. This wouldn't be very robust, but there are tools that handle CSV specifically[1], which can be composed in a shell script just fine.
So it's always a balancing act of being productive quickly with a shell script, or reaching out for a programming language once the tools aren't a good fit, or maintenance becomes an issue.
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GQL: A new SQL like query language for .git files written in Rust
That said, you may be interested in Miller (https://github.com/johnkerl/miller) which provides similar capabilities for CSV, JSON, and XML files. It doesn't use a SQL grammar, but that's just the proverbial lipstick on the thing. I'm not the author, but I have used it and I see some parallels in use cases at the very least.
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Any cli utility to create ascii/org mode tables?
worth giving Miller a shot
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I wrote this iCalendar (.ics) command-line utility to turn common calendar exports into more broadly compatible CSV files.
CSV utilities (still haven't pick a favorite one...): https://github.com/harelba/q https://github.com/BurntSushi/xsv https://github.com/wireservice/csvkit https://github.com/johnkerl/miller
- Miller: Like Awk, sed, cut, join, and sort for CSV, TSV, and tabular JSON
- Nushell.sh ls – where size > 10mb – –sort-by modified
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Tool to interact with CSV
Came here to recommend miller!
tsv-utils
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Tracking SQLite Database Changes in Git
You might want to look at tsv-utils, or a similar project: https://github.com/eBay/tsv-utils
For the SQL part, but maybe a lot heavier, you can use one of the projects listed on this page: https://github.com/multiprocessio/dsq (No longer maintained, but has links to lots of other projects)
- Splitting CSV files at 3GB/s
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Modernizing AWK, a 45-year old language, by adding CSV support
For anything down and dirty, what's wrong with -F'"'? For anything fancy there are plenty of things like the below.
eBay's TSV Utilities: Command line tools for large, tabular data files. Filtering, statistics, sampling, joins and more.
includes csv to tsv: https://github.com/eBay/tsv-utils
When you have "format wars", the best idea is usually to have a converter program change to the easiest to work with format - unless this incurs a massive expansion in space as per some image/video formats.
With CSV-like data, bulk conversion from quoted-escaped RFC4180 CSV to a simpler-to-parse format is the best plan for several reasons. First, it may "catch on", help Microsoft/R/whoever embrace the format and in doing so squash many bugs written by "data analyst/scientist coders". Second, in a shell a|b run programs a & b in parallel on multi-core and allow things like csv2x|head -n10000|b. Third, bulk conversion to a random access file where literal delimiters cannot occur as non-delimiters allows trivial file segmentation to be nCores times faster (under often satisfied assumptions). There are some D tools for this in https://github.com/eBay/tsv-utils and a much smaller stand-alone Nim tool https://github.com/c-blake/nio/blob/main/utils/c2tsv.nim . Optional quoting was always going to be a PITA due to its non-locality. What if there is no quote anywhere? Fourth, by using a program as the unit of modularity in this case, you make things programming language agnostic. Someone could go to town and write a pure SIMD/AVX512 converter in assembly even and solve the problem "once and for all" on a given CPU. The problem is actually just simple enough that this smells possible.
I am unaware of any "document" that "standardizes" this escaped/lossless TSV format. { Maybe call it "DSV" for delimiter separated values where "delimiters actually separate"? } Someone want to write an RFC or point to one? It can be just as "general/lossless" (see https://news.ycombinator.com/item?id=31352170).
Of course, if you are going to do a lot of data processing against some data, it is even better to parse all the way to down to binary so that you never have to parse again (Well, unless you call CPUs loading registers "parsing") which is what database systems have been doing since the 1960s.
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[OC]Tidy Viewer (tv) is a cross-platform csv pretty printer that uses column styling to maximize viewer enjoyment.
tsv-utils - Command line csv data manipulation toolkit. D
What are some alternatives?
visidata - A terminal spreadsheet multitool for discovering and arranging data
xsv - A fast CSV command line toolkit written in Rust.
jq - Command-line JSON processor [Moved to: https://github.com/jqlang/jq]
dasel - Select, put and delete data from JSON, TOML, YAML, XML and CSV files with a single tool. Supports conversion between formats and can be used as a Go package.
csvtk - A cross-platform, efficient and practical CSV/TSV toolkit in Golang
yq - yq is a portable command-line YAML, JSON, XML, CSV, TOML and properties processor
csvq - SQL-like query language for csv
json-toolkit - "the best opensource converter I've found across the Internet" -- dene14
gron - Make JSON greppable!
dextool - Suite of C/C++ tooling built on LLVM/Clang
awesome-cli-apps - 🖥 📊 🕹 🛠 A curated list of command line apps
csvkit - A suite of utilities for converting to and working with CSV, the king of tabular file formats.