fileinfo

linux脚本编程的例子

if [ ! -e "$1" ]; then
    echo "file $1 does not exist."
    exit 1
fi
if [ -d "$1" ]; then
    echo -n "$1 is a directory that you may "
    if [ ! -x "$1" ]; then
        echo -n-n "not "
    fi
    echo "search."
elif [ -f "$1" ]; then
    echo "$1 is a regular file."
else
    echo "$1 is a special type of file."
fi
if [ -O "$1" ]; then
    echo 'you own the file.'
else
    echo 'you do not own the file.'
fi
if [ -r "$1" ]; then
    echo 'you have read permission on the file.'
fi
if [ -w "$1" ]; then
    echo 'you have write permission on the file.'
fi
if [ -x "$1" -a ! -d "$1" ]; then
    echo 'you have execute permission on the file.'
fi