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Shell Programming and Scripting

How to write rename script?

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Top Forums Shell Programming and Scripting How to write rename script?
# 1  
Old 08-26-2013
How to write rename script?
I have files fd01.calc,fd02.calc,fd03.calc..I want to rename in fd01.picks,fd02.picks,fd03.picks

How to do this?
# 2  
Old 08-26-2013
If you have less number of files:
Code:
for INDEX in 1 2 3
do
 mv fd0${INDEX}.calc fd0${INDEX}.picks
done

If you have these files in a directory and to rename all the files in the directory:
Code:
DIR=/your/directory
for FILENAME in $(ls $DIR)
do
 echo mv $FILENAME ${FILENAME%.*}.picks
done

Check the output and if it is okay then remove the red echo.
# 3  
Old 08-26-2013
Code:
ls *.calc | sed 's/\.calc$//' | xargs -i mv {}.calc {}.picks

# 4  
Old 08-26-2013
If your OS supports the rename command you can use this:

rename 's/calc/picks/' *.calc
# 5  
Old 08-26-2013
Try
Code:
for i in fd0{1..3}.calc; do echo mv $i ${i%.*}.picks; done

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