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tldr/pages/common/textql.md
Vitor Henrique e7d5609dd3
pages*: improve list placeholders and wording of descriptions (#12111) 
* pages*: improve wording and list placeholders

* clamav: fix verb tenses

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* buzzphrase: use k instead of n for number of phrases

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* adguardhome: use non-default instead of different

* adguardhome: use configuration instead of config

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* goimports, module: fix list placeholders

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* pages*: leave stems and extensions in the same placeholders

* pages*: fix list placeholders

* pages*: fix list placeholders

* pages*: apply suggestions from code review

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* qpdf: enclose n with backticks

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
2024-01-31 09:25:19 +05:30

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textql

Execute SQL against structured text like csv or tsv files. More information: https://github.com/dinedal/textql.

  • Print the lines in the specified .csv file that match a SQL query to stdout:

textql -sql "{{SELECT * FROM filename}}" {{path/to/filename.csv}}

  • Query .tsv file:

textql -dlm=tab -sql "{{SELECT * FROM filename}}" {{path/to/filename.tsv}}

  • Query file with header row:

textql -dlm={{delimiter}} -header -sql "{{SELECT * FROM filename}}" {{path/to/filename.csv}}

  • Read data from stdin:

cat {{path/to/file}} | textql -sql "{{SELECT * FROM stdin}}"

  • Join two files on a specified common column:

textql -header -sql "SELECT * FROM {{path/to/file1}} JOIN {{file2}} ON {{path/to/file1}}.{{c1}} = {{file2}}.{{c1}} LIMIT {{10}}" -output-header {{path/to/file1.csv}} {{path/to/file2.csv}}

  • Format output using an output delimiter with an output header line:

textql -output-dlm={{delimiter}} -output-header -sql "SELECT {{column}} AS {{alias}} FROM {{filename}}" {{path/to/filename.csv}}