当测试目录是否可写时,此函数始终返回True。有人可以向我解释原因吗?只有“目录可写”(到目前为止)失败了。但我希望包含整个功能,以便提供有关事先发生情况的更多详细信息。
此函数接受“before”和“after”字符串,通过用短划线替换所有空格来重命名文件和/或目录。我只是要使用“重命名”功能,但是我需要遵循一个预先构建的骨架脚本。
更新了scipt:
my_rename()
{
echo "Trying: myrename $1 $2"
# implement this function to my_rename $1 to $2
# The following error checking must happen:
# 1. check if the directory where $1 resided is writeable, if not then report an error
# Is it a directory or a file
if [ -d $1 ]
then
dnam=$1
ftyp=$"dir"
else
# It's a file. Let's get the dirname
dnam=$(dirname $1)\"
ftyp=$"file"
fi
echo "dnam $dnam"
# Is the directory writable
errcd=0
if [ ! -w "$dnam" ]
then
# Not writable. Show an error.
echo "Directory $dnam is not writable by $(whoami)"
errcd=1
fi
# 2. check if "$2" exists -if it does report and error and don't do the mv command
if [ "$errcd" -eq 0 ] && ([ -f $2 ] || [ -d $2 ])
then
if [ $ftyp = "file" ]
then
echo "File $2 already exists"
else
echo "Directory $2 already exists"
fi
errcd=1
fi
# 3. check the status of the mv command and report any errors
if [ "$errcd" -eq 0 -a -e $2 ]
then
exec "mv -f $1 $2"
if [ $? -gt 0 ]
then
echo "Command failed: myrename $1 $2"
fi
fi
}
bryan@bryan-VirtualBox:~/renametest$ ./script3.sh -f ~/renametest
Trying: myrename "/home/bryan/renametest/1 2" "/home/bryan/renametest/1-2"
dnam "/home/bryan/renametest"
Directory "/home/bryan/renametest" is not writable by bryan
drwxr-xr-x 3 bryan bryan 4096 2013-04-03 17:10 renametest
答案 0 :(得分:0)
由于对mark a comment as an answer的功能请求仍然被拒绝,我在此处复制上述解决方案。
Re:-w问题,看上游。如果第一个参数是目录dnam设置为它,但如果它不是目录或不存在,则执行以下操作:dnam = $(dirname $ 1)\“(最终转义为”表明错误。)您显示的输出示例已经过编辑,或者,当转义为“建议”时,您将这些值传递给函数,并使用引号作为值的一部分 - 糟糕的想法,我几乎可以保证您的文件/目录名称系统不包含引号。看起来这个问题就是你调用这个函数,而不是函数.-- William