7290 ZFS test suite needs to control what utilities it can run
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

@@ -23,11 +23,11 @@
 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
 
 #
-# Copyright (c) 2013 by Delphix. All rights reserved.
+# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
 #
 
 . $STF_SUITE/include/libtest.shlib
 
 set -A disk_array $(find_disks $DISKS)

@@ -56,11 +56,11 @@
 
 export DISK_COUNT ZFS_DISK NONZFS_DISK SINGLE_DISK ZFSSIDE_DISK NONZFSSIDE_DISK
 
 export TESTFILE=/etc/passwd
 export NONZFS_TESTDIR=$TESTDIR/nonzfstestdir
-tmp=`$SUM $TESTFILE`
-export SUMA=`$ECHO $tmp | $AWK '{print $1}'`
-export SUMB=`$ECHO $tmp | $AWK '{print $2}'`
+tmp=`sum $TESTFILE`
+export SUMA=`echo $tmp | awk '{print $1}'`
+export SUMB=`echo $tmp | awk '{print $2}'`
 export FS_SIZE=1g
-export BNAME=`$BASENAME $TESTFILE`
-export DNAME=`$DIRNAME $TESTFILE`
+export BNAME=`basename $TESTFILE`
+export DNAME=`dirname $TESTFILE`