# concat - Join lists together

## SYNOPSIS

concat ?arg arg ...?

## DESCRIPTION

This command treats each argument as a list and concatenates them into a single list. It also eliminates leading and trailing spaces in the arg's and adds a single separator space between arg's. It permits any number of arguments. For example, the command

    concat a b {c d e} {f {g h}}

will return

    a b c d e f {g h}

as its result.

If no args are supplied, the result is an empty string.

## KEYWORDS

concatenate, join, lists