China DOS Union

Create a 10.pdf in the C drive.

Execute the following two commands;

See what 10.pdf is renamed to in the end /

ren 10.pdf *2.c

The result is: 10.pdf2.c

ren 10.pdf *1.c

The result is 1.c

This "*" is a wildcard. Can wildcards be used for file names?

Brother ls, don't you know the magic of "ren *.pdf *.c"?

The two usages are fundamentally different. The filename and extension are processed separately: ren *.pdf *.c, regardless of what the filename is, only the extension is changed.

But what is the difference between *1.c and *2.c? Why is one 1.c and the other is 10.pdf2.c

```
ren 10.pdf *0.c
ren 10.pdf *p.c
ren 10.pdf *d.c



Not a bug

[ Last edited by kcdsw on 2007-4-14 at 08:03 AM ]

Thanks to ls;

Suddenly enlightened ah!!

What a sudden enlightenment?
Little brother still doesn't understand?
Can the landlord specifically talk about it?

After 59fei receives my private message, please post the private message here.

1、
ren full file name *any character or consecutive string in the specified full file name. extension
Rename the file to: wildcard from the beginning of the original file name to the specified character (string). extension
For example:
ren 10.pdf *0.c gets 10.c
ren 10.pdf *p.c gets 10.p.c
ren 10.pdf *d.c gets 10.pd.c

2、
ren full file name *non-consecutive string in the specified full file name. extension
Rename the file to: wildcard from the beginning of the original file name to the first character of the specified string + remaining string content. extension
For example:
ren 10.pdf *1p.c gets 1p.c
ren 10.pdf *0dp.c gets 10dp.c

3、
ren full file name *any character (string) in the specified full file name. extension
Rename the file to: wildcard full file name + specified character (string). extension
For example
ren 10.pdf *mm.c gets 10.pdfmm.c

The summary is a bit complicated, I hope brothers can simplify it
: Thank you for the reminder from the downstairs, hehe

[ Last edited by tclgb on 2007-7-9 at 10:31 PM ]

3、
ren full file name *any character(s) except the full file name. extension
Rename the file to: wildcard full file name + specified character(s). extension
For example:
ren 10.pdf *mm.c gets 10.pdf1p.c

Is that a typo?
10.pdfmm.c

Unexpectedly, REN has such a useful application, add points, collect and learn.

Eyes, your eyes are all blurry. Under what circumstances do you have to use ren like this?