add argument checking to colors

2024-06-26 09:07:12 -07:00 · 2021-07-30 12:36:50 -07:00 · 2021-07-30 12:36:50 -07:00 · aed65ec04f
parent 936bb919ed
commit aed65ec04f
1 changed files with 1 additions and 0 deletions
--- a/sh/colors
+++ b/sh/colors
@ -4,6 +4,7 @@
 # NO_DASH

 colors() {
+    [ $# -eq 0 ] || { printf "%s\n" "$0: does not take arguments" >&2; return 1; }
    printf "\e[%dm$(printf " \e[%dm mV \e[40m" {4,10}{0..7})\e[0m\n" {3,9}{0..7}
 }