From c25bbd08331d88dc1f68806e204a091ed5693f9a Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <michael@orlitzky.com>
Date: Tue, 15 Sep 2020 20:03:06 -0400
Subject: [PATCH 1/2] runtest1.sh,testdummy: use "command -v" instead of
 "which".

The "command -v" incantation is the POSIX-compatible version of the
"which" command, described in

  https://pubs.opengroup.org/onlinepubs/9699919799/utilities/command.html

This commit changes two uses of "which" to "command -v" for maximum
compatibility. This has a nice side effect; it eliminates the error
output when the first of two alternatives is not found, as in

  which: no gsleep in (...)

before the "sleep" command is used as a fallback.
---
 runtest1.sh | 2 +-
 testdummy   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/runtest1.sh b/runtest1.sh
index 7584116..2dfadd1 100755
--- a/runtest1.sh
+++ b/runtest1.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
 
-A=`which gawk || which awk`
+A="$(command -v gawk || command -v awk)"
 $A "BEGIN{for (i=0;i<10;++i) print rand()*10}" | ./xjobs -j8 ./testdummy
diff --git a/testdummy b/testdummy
index 1787a46..f511806 100755
--- a/testdummy
+++ b/testdummy
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-S=`which gsleep||which sleep`
+S="$(command -v gsleep || command -v sleep)"
 $S $1
 expr "$1" \> "4" > /dev/null
 if [ "$?" != "0" ]; then
-- 
2.26.2