From: Matthias Kruk <m@m10k.eu>
Date: Thu, 11 Aug 2022 11:18:02 +0000 (+0900)
Subject: include/opt: Print correct script name on older bash versions
X-Git-Url: https://git.corax.cc/?a=commitdiff_plain;h=ed7eace72b34c361eb294a3aad3e1777d52992d3;p=toolbox

include/opt: Print correct script name on older bash versions

The opt module references $BASH_ARGV0 to get the name of the running
script. However, the variable does not exist on older bash versions,
causing a gap in the help text.

This commit modifies the opt module to access the script name from
$0, which should be available on all bash versions.
---

diff --git a/include/opt.sh b/include/opt.sh
index 7c96c7b..7e3875b 100644
--- a/include/opt.sh
+++ b/include/opt.sh
@@ -122,7 +122,7 @@ opt_print_help() {
 		shortopts+="$short"
 	done
 
-	echo "Usage: $BASH_ARGV0 [-$shortopts]"
+	echo "Usage: ${0##*/} [-$shortopts]"
 	echo ""
 	echo "Options"