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csvsql:tldr:5cfe8
The command you provided is using the csvsql
tool and its options. Here's the breakdown of the command:
csvsql
: This is the actual command or executable being run. It is a tool for working with CSV (Comma-Separated Values) files.
--query
: This option is used to specify the query that should be executed on the CSV data.
${select * from 'data'}
: This part is the value passed as the query. It is using SQL syntax and is equivalent to executing the query SELECT * FROM data
. The SELECT *
statement is used to select all columns from the specified table or dataset. The FROM 'data'
part specifies the table or file named 'data'
.
${data-csv}
: This is the value representing the path or file name of the CSV file that should be processed. The ${}
syntax is typically used to represent variables in shell or script files, so it implies that data-csv
is a variable holding the path to the CSV file.
In summary, the command is using csvsql
to execute an SQL query on a CSV file specified by ${data-csv}
, and the query selects all columns from the table or dataset named 'data'
.