Shell Programming and Scripting

nofiles='ll /data1/app1 | wc -l'
if [ $nofiles -ne 1 ]
then
echo " files exist in the directory "
exit
else
cd /data2/app2
for file in $(ls -p | grep -v *.xml | head -100)
do
mv $file /data1/app1
done
fi

nofiles='ll /data1/app1 | wc -l'

nofiles=$(ll /data1/app1 | wc -l)

#!/bin/bash

cd /data1/app1
nofiles=ll | wc -l
echo $nofiles
nullvalue="1"

if [ "$nofiles" > "$nullvalue" ];
then
echo " files exist in the directory "
exit

else

cd /data2/app2
for file in $(ls  | head -100)
do
mv $file /data1/app1
done
fi

[ "$(ls)" != ""  ] && echo " files exist in the directory " || ... do your copying / moving