q:tldr:a4b7c
q: Query `.tsv` file.
$ q -t "SELECT * from ${filename}"
try on your machine
The given command is using the command-line tool q to execute a SQL query. Here is what each part of the command denotes:
-
q: This is the command-line tool being used that allows running SQL queries against tabular data files. -
-t: This option is used to specify the query type. In this case, it is a select query. -
"SELECT * from ${filename}": This is the SQL query that will be executed. It is selecting all columns (*) from the table named${filename}. The${filename}is likely a variable, and in this command, it represents the actual name of the table from which data will be selected.
Overall, this command is instructing the q tool to execute a select query to fetch all rows and columns from a table specified by ${filename}.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.