into itself
时间: 2023-11-04 13:57:27 浏览: 10
"into itself"的意思是将一个目录或文件复制到其自身内部。在引用中的例子中,命令`cp -R /home/dgd Backupsrv/`试图将目录`/home/dgd`复制到`Backupsrv/`目录中,但由于目标目录与源目录相同,因此会出现错误信息`cp: cannot copy a directory, '/home/dgd', into itself, 'Backupsrv/dgd'`。这表示无法将一个目录复制到它自己内部。
相关问题
There is a string a (unknown to you), consisting of lowercase Latin letters, encrypted according to the following rule into string s : after each character of string a , an arbitrary (possibly zero) number of any lowercase Latin letters, different from the character itself, is added; after each such addition, the character that we supplemented is added. You are given string s , and you need to output the initial string a . In other words, you need to decrypt string s .
To decrypt string s, you can iterate through each character of s and keep track of the last character seen. Whenever a new character is encountered, it means that all the characters before it (including the new character) belong to the same character in the original string a. So you can add the last character seen to the decrypted string a, and update the last character seen to the new character.
Here's the Python code to implement this:
```
def decrypt_string(s):
a = ''
last_char = ''
for c in s:
if c != last_char:
a += c
last_char = c
return a
```
For example, if s = 'aabbccdd', the function will return 'abcd'.
If you put all disks into RAIDs or LVM VGs, there will be nowhere to put the
operating system itself. Typically, the operating system is installed on a separate disk or partition that is not part of the RAID or LVM VG. This allows the operating system to be easily reinstalled or upgraded without affecting the data stored on the RAID or LVM VG.
It is also possible to create a separate RAID or LVM VG for the operating system, but this is less common and may not provide any significant benefits over installing the operating system on a separate disk or partition. Ultimately, the best approach will depend on the specific requirements and constraints of your system.
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