execline
Software
skarnet.org
 The dollarat program 
dollarat prints the positional parameters of an execline script.
 Interface 
     dollarat [ -n ] [ -0 | -d delimchar ]
 -  dollarat reads the number n of "positional
parameters" in the # environment variable. If that variable
is not set or does not contain a valid n, dollarat
exits 100. 
-  dollarat prints the value of the 1 environment
variable, then delimchar, then the value of the 2
environment variable... and so on until n. If one of
these variables is not set, dollarat exits 100. 
-  If everything runs OK, dollarat exits 0. This makes it
one of the rare "exiting" execline commands. 
 Options 
 -  -n : chomp. Do not print the last
delimchar. 
-  -d delimchar : use the character
delimchar as separator between the arguments. Default: \n.
If delimchar has more than one character, only the first one is
used. If delimchar is the empty string, then dollarat
will output the positional parameters as a
sequence of netstrings (and the
-n option will be ignored). 
-  -0 : use the null character as separator. If this option
and the -d option are given concurrently, the rightmost one wins.
Warning: -0 should only be used to feed
data to programs that know how to handle null-separated lists. 
 Notes