Linux Next interesting question (the file name begins with a dash or a space)

Linux Next interesting question (the file name begins with a dash)

This was an inadvertent discovery.

Under Linux, the file name contains - There is no problem, but if the file name is - as the first character, then it is more troublesome.

Problem Demo

Look here, the filename beginning with the dash appears to be immune to operations such as MV CP RM . With this feature you can create some cumbersome files or folders.

[Email protected]:~$ls-Python.md[email protected]-pc:~$MV-python.md5-python.mdMV: Invalid option--Ptry'MV--help'  for  Moreinformation. [Email protected]-pc:~$MV "-python.md" 5-python.mdMV: Invalid option--Ptry'MV--help'  for  MoreInformation.

Solutions

This is actually a good solution, the problem is because it will - as an option parameter identification, and cause the corresponding file cannot be found. The solution is to find a way to hide this.

MV 5-pythom.md

File name begins with a space

There is no intention to say too much here, the principle is the same. If the file name begins with a space, you must know the number of spaces.

Enclose the file name you want to manipulate in single quotation marks

For example, there is a file named "a" Note that the file name is three spaces plus one letter A. If you rename it, use the following command

mv '   A'    new file name

Linux Next interesting question (the file name begins with a dash or a space)