The `s6-unquote` program

s6-unquote unquotes a quoted string and writes it to stdout.

Interface

     s6-unquote [ -n ] [ -d delim ] string

s6-unquote unquotes string, which must follow the syntax of s6-quote's output strings
It prints various warning or error messages to stderr if it cannot unquote string properly
If successful, it prints the result to stdout and exits 0

-n : do not print a trailing newline.
-d delim : a list of characters that will be considered as delimitors (to start and end the quoted string). By default, only the double quote is such a character. If delim is the empty string, s6-unquote interprets string as non-delimited, only escaped (i.e. the result of some s6-quote -u operation).