BASH Batch renaming insert additional zero into filename


 
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# 1  
Old 04-16-2012
BASH Batch renaming insert additional zero into filename

Hi all,

Wondering how this could be accomplished........

a directory contains sequentially numbered files from fw01 to fw999.

How would I insert an additional zero so that the directory lists these files in a proper manner?

(i.e. all double digit files from fw01 to fw99 would become fw001 to fw099)

Should have thought of this at the start of the project, but a "quickie rename trick" would save a significant amount of time.

Regards & TIA

putter
# 2  
Old 04-16-2012
Try:
Code:
for f in fw??; do
  echo mv "$f" "fw$(printf "%03d" ${f#fw})"
done

remove echo if it looks OK...
This User Gave Thanks to Scrutinizer For This Post:
# 3  
Old 04-16-2012
Code:
for i in fw[0-9][0-9]
do
     mv $i "fw0${i: -2}"
done

This User Gave Thanks to fpmurphy For This Post:
# 4  
Old 04-16-2012
Quote:
Originally Posted by Scrutinizer
Try:
Code:
for f in fw??; do
  echo mv "$f" "fw$(printf "%03d" ${f#fw})"
done

remove echo if it looks OK...
You're a STAR! Worked like a charm. Smilie Thank you!!

Shell scripting is something of a "dark art" I have yet to get my head around.

putter
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