Linux shell 脚本：使用当前日期名称创建一个文件夹
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Linux shell script : make a folder with the current date name
提问by SteveL
I am trying to make a simple backup script and i have problem creating a folder with the curent date for name
我正在尝试制作一个简单的备份脚本，但我在创建一个名称为当前日期的文件夹时遇到问题
My script is that and basically the problem is on the last line
我的脚本就是这样，基本上问题出在最后一行
drivers=$(ls /media/)
declare -i c=0
for word in $drivers
do
echo "($c)$word"
c=c+1
done
read -n 1 drive
echo
c=0
for word in $drivers
do
if [ $c -eq $drive ]
then
backuppath="/media/$word/backup"
fi
c=c+1
done
echo "doing back up to $backuppath"
cp -r /home/stefanos/Programming $backuppath/$(date +%Y-%m-%d-%T)
Ouput:
输出：
(0)0362-BA96
(1)Data
(2)Windows
0
doing back up to /media/0362-BA96/backup
cp: cannot create directory `/media/0362-BA96/backup/2012-12-05-21:58:37': Invalid argument
The path is triply checked that is existing until /media/0362-BA96/
路径经过三次检查，直到 /media/0362-BA96/
SOLVED: Did what janisz said the final script looks like
已解决：按照 janisz 所说的，最终脚本看起来像
drivers=$(ls /media/)
declare -i c=0
for word in $drivers
do
echo "($c)$word"
c=c+1
done
read -n 1 drive
echo
c=0
for word in $drivers
do
if [ $c -eq $drive ]
then
backuppath="/media/$word/backup"
fi
c=c+1
done
echo "doing back up to $backuppath"
backup(){
time_stamp=$(date +%Y_%m_%d_%H_%M_%S)
mkdir -p "${backuppath}/${time_stamp}"
cp -r "" "${backuppath}/${time_stamp}"
echo "backup complete in "
}
#####################The paths to backup####################
backup "/home/stefanos/Programming"
backup "/home/stefanos/Android/Projects"
backup "/home/stefanos/Dropbox"
采纳答案by janisz
:is not valid on FAT (it is used to specify disk). Some of M$ invalid character works on GNU/Linux systems but it is safer to avoid them (just replace with .). Use following date format
:在 FAT 上无效（用于指定磁盘）。一些 M$ 无效字符适用于 GNU/Linux 系统，但避免它们更安全（只需替换为.）。使用以下日期格式
date +%Y_%m_%d_%H_%M_%S
It should works on most file systems but it could be too long for MS DOS FAT. More info you will find here.
它应该适用于大多数文件系统，但对于 MS DOS FAT 来说可能太长了。您将在此处找到更多信息。
回答by sampson-chen
Trying changing it to:
尝试将其更改为：
time_stamp=$(date +%Y-%m-%d-%T)
mkdir -p "${backuppath}/${time_stamp}"
cp -r /home/stefanos/Programming "${backuppath}/${time_stamp}"
