ref: 364fdaa97776937ed77ba64bab5b1617db30d72c
parent: 3458a173679abb92d21fb8edf553bb3109832a39
author: Ori Bernstein <ori@eigenstate.org>
date: Sat May 9 23:29:16 EDT 2020
show usage with empty arg list
--- a/add
+++ b/add
@@ -23,6 +23,8 @@
}
if(~ $1 --)
shift
+if(~ $#* 0)
+ usage
if(~ $#rel 0)
rel=''