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Add Send A Command To psql as a postgres til.
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postgres/send-a-command-to-psql.md
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23
postgres/send-a-command-to-psql.md
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# Send A Command To psql
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You can send a command to `psql` to be executed by using the `-c` flag
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```bash
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$ psql -c "select 'Hello, World!';"
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?column?
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---------------
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Hello, World!
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(1 row)
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```
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Specify a particular database as needed
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```bash
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$ psql blog_prod -c 'select count(*) from posts;'
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count
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-------
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8
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(1 row)
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```
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h/t Jack Christensen
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