file="./var.sh"
if [ -r $file ]
then
echo "can read"
else
echo "can not read"
fi
if [ -w $file ]
then
echo "can write"
else
echo "can not write"
fi
if [ -x $file ]
then
echo "can exec"
else
echo "can not exec"
fi
if [ -f $file ]
then
echo "common file"
else
echo "special file"
fi
if [ -d $file ]
then
echo "is dir"
else
echo "is not dir"
fi
if [ -e $file ]
then
echo "file exist"
else
echo "file not exist"
fi
if [ -s $file ]
then
echo "file is not empty"
else
echo "file not exist"
fi
输出结果：
can read
can write
can not exec
common file
is not dir
file exist
file is not empty
