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Copy command

 
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# 1  
Old 01-22-2016
Copy command
Hi ,

I am trying to take a backup of file before overwriting it with cp command, I am using the command cp -b.

Code:
-rw-rw-r-- 1 autoengine murex    0 Jan 22 07:08 a
-rw-rw-r-- 1 autoengine murex    0 Jan 22 07:08 b

cp -b a b

-rw-rw-r-- 1 autoengine murex    0 Jan 22 07:08 a
-rw-rw-r-- 1 autoengine murex    0 Jan 22 07:08 b~
-rw-rw-r-- 1 autoengine murex 3518 Jan 22 07:08 script.log
-rw-rw-r-- 1 autoengine murex    0 Jan 22 07:09 b

I want the b~ file to be created as b.bk.
Can you let me know how to achieve this ?
And is there any similar method using vi, which will take a backup of a file before saving the modifications.

Thanks
# 2  
Old 01-22-2016
You can influence the backup suffix with
Quote:
-S, --suffix=SUFFIX
override the usual backup suffix
.
This User Gave Thanks to RudiC For This Post:
Raj999
 
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