`[bells@bellszhu Desktop]$ result=" "
[bells@bellszhu Desktop]$ if [ -z $result ]
then
echo "no"
fi
no
[bells@bellszhu Desktop]$ echo ${result}test
test
[bells@bellszhu Desktop]$
`
`[bells@bellszhu Desktop]$ result=" "
[bells@bellszhu Desktop]$ if [ -z $result ]
then
echo "no"
fi
no
[bells@bellszhu Desktop]$ echo ${result}test
test
[bells@bellszhu Desktop]$
`