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q:tldr:3fbc3
q: Query file with header row.
$ q -d${delimiter} -H "SELECT * from ${filename}"
try on your machine
This command seems to be using the q program to execute a SQL-like query on a file.
Here is the breakdown of the command:
q
is the name of the program being used.-d${delimiter}
specifies the delimiter to be used when parsing the file. The${delimiter}
is a placeholder that should be substituted with the actual delimiter value.-H
is an option that instructs the program to treat the first line of the file as the header and use it to name the columns."SELECT * from ${filename}"
is the SQL-like query to be executed. The${filename}
is a placeholder that should be substituted with the actual name of the file to query.
Overall, this command is likely using the q
program to query a file using a SQL-like syntax and specified delimiter, treating the first line as the header.
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.