changing 1st 3 characters of the file name!?

Shell Programming and Scripting
1

Hello Freinds,

I have a file with name ABC123456. and I need to change this to X123456.

Please tell me how can I do this?

Thank you.

2 
mv ABC123456 X123456

If that doesn't do it for you, you'll have to be more specific on what you need.

3

pls be specific ...

mv abc123456 x123456
4

Thanks for your reply but i dont want the other name to go...

dont think about file.. I just need to change the name from ABC12345 to X12345 but i should have ABC12345 also in my directory...

that means considering 2 variables

VAR1=ABC12345

VAR2=X12345 i should get.

and if I print $VAR1 and $VAR2 i should get the respective output...

Thank you

5

As long as it's always the same substitution:

VAR1="ABC123456"
VAR2=$( echo "$VAR1" | sed -e 's/^ABC/X/' )

If you want to change any 3 characters:

VAR1="ABC123456"
VAR2=$( echo "$VAR1" | sed -e 's/^.../X/' )
6

Thanks freind..working great