Revert "Test for executables: replace 'which' with more robust 'command -v'"

This reverts commit 2d9ab1f7f82f9a98b97d1503c1e3f31c86061c15.

Causes test failure due to bashism.

3 files changed, 3 insertions, 3 deletions

diff --git a/scripts/build/bootstrap_debootstrap b/scripts/build/bootstrap_debootstrap
index d1fe54365..c25cbacec 100755
--- a/scripts/build/bootstrap_debootstrap
+++ b/scripts/build/bootstrap_debootstrap
@@ -21,7 +21,7 @@ USAGE="${PROGRAM} [--force]"
 # Processing arguments and configuration files
 Init_config_data "${@}"
 
-if ! command -v debootstrap >/dev/null
+if [ ! $(which debootstrap) ]
 then
 	Echo_error "debootstrap - command not found"
 	Echo_verbose "debootstrap can be obtained from http://ftp.debian.org/debian/pool/main/d/debootstrap/"
diff --git a/scripts/build/chroot_archives b/scripts/build/chroot_archives
index 612f8f74a..b602caf4b 100755
--- a/scripts/build/chroot_archives
+++ b/scripts/build/chroot_archives
@@ -238,7 +238,7 @@ case "${1}" in
 				cp -f cache/indices.bootstrap/*Release* chroot/var/lib/apt/lists
 			fi
 
-			if [ "${LB_APT}" = "aptitude" ] && ! command -v aptitude >/dev/null
+			if [ "${LB_APT}" = "aptitude" ] && [ ! $(which aptitude) ]
 			then
 				Chroot chroot "apt-get ${APT_OPTIONS} update"
 				Chroot chroot "apt-get ${APT_OPTIONS} install aptitude"
diff --git a/scripts/build/config b/scripts/build/config
index 943ca7c00..0f84c28c7 100755
--- a/scripts/build/config
+++ b/scripts/build/config
@@ -182,7 +182,7 @@ Local_arguments ()
 		case "${1}" in
 			--dump)
 				# Dump version
-				if command -v dpkg-query >/dev/null
+				if [ $(which dpkg-query) ]
 				then
 					VERSION_DPKG="$(dpkg-query -f='${Version}' --show live-build)"
 				fi