I am tarring up a directory and then deleting the contents. I get a message that the file changed as tar was reading it, then my script fails on an error.

tar: /workdir/SRD.out.20080216: file changed as we read it
tar: Error exit delayed from previous errors
tar command failed, nothing archived - RC=0... message from my script.

The return code appears to be zero, but my script is not catching it and fails at that point without getting to the statement to delete the files. Any idea what I am doing wrong?

if ls $WORKDIR/* >/dev/null 2>&1; then
tar cvf $ARCH/logs.tar $WORKDIR
else
echo "No files to Archive"; exit 0;
fi
if [ "$?" -ge 1 ]; then echo "tar command failed, nothing archived - RC=$?..."; exit $?; fi
rm -f $WORKDIR/*

$ cat bogus
#! /usr/bin/ksh

false
echo $?
echo $?


false
if [ $? -ge 1 ] ; then echo but now the code is $? ; fi
$ ./bogus
1
0
but now the code is 0
$