Update cheatsheets

csvcut

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# csvcut
+
+> Filter and truncate CSV files. Like Unix's `cut` command, but for tabular data.
+> Included in csvkit.
+> More information: <https://csvkit.readthedocs.io/en/latest/scripts/csvcut.html>.
+
+- Print indices and names of all columns:
+
+`csvcut -n {{data.csv}}`
+
+- Extract the first and third columns:
+
+`csvcut -c {{1,3}} {{data.csv}}`
+
+- Extract all columns except the fourth one:
+
+`csvcut -C {{4}} {{data.csv}}`
+
+- Extract the columns named "id" and "first name" (in that order):
+
+`csvcut -c {{id,"first name"}} {{data.csv}}`