s6-portable-utils
Software
skarnet.org
 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 
 Options 
 -  -n : do not print a trailing newline. 
-  -d delim : a list of characters that
will be considered as delimiters (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). 
 Notes