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qsv cheat sheet
Mueez Khan edited this page Oct 22, 2024
·
3 revisions
The infographic may be outdated so feel free to update it if so.
Typst source code
#import "@preview/cram-snap:0.1.0": cram-snap
#set page(
paper: "us-letter",
flipped: true,
margin: 1in,
)
#set text(font: "Arial", size: 11pt)
#show: cram-snap.with(
title: [Explore several qsv use cases],
column-number: 1 // or 2
)
#set align(center)
#link("https://github.com/jqnatividad/qsv")[qsv] is a spreadsheet data wrangling command-line tool.
#table(
table.header[Data analysis],
[`qsv count <path>`], [Print the total non-header row count (to add the header row include `-n`)],
[`qsv headers <path> --just-count`], [Print the total column count],
[`qsv stats <path>`], [Print statistical data for each column],
[`qsv stats <path> -E`], [Print statistical data for each column (can take longer but adds more stats)],
[`qsv frequency <path>`], [Print frequency data for each column],
[`qsv sniff <path>`], [Attempt inferring/printing metadata],
[`qsv search <regex> <path>`], [Print rows that have a field which match the given regular expression],
[`qsv search <literal> <path> --literal`], [Print rows that have a field which match the given literal string (text)]
)
#table(
table.header[`qsv slice`],
[`qsv slice <path> -s 0 -e 100`], [Print the first 100 non-header rows],
[`qsv slice <path> -s 0 -e 100 -n`], [Print the first 100 rows],
[`qsv slice <path> -s 0 -e 100 --json`], [Print the first 100 non-header rows in JSON format],
[`qsv slice <path> -o <path.X>`], [Replace the file extension `X` with any of: `csv`, `tsv`, `tab`, `ssv`, and further add `.sz` to any of the extensions to get a Snappy compressed file]
)