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Shell Programming and Scripting

Remove last character from filename

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# 1  
Old 10-03-2011
Remove last character from filename
Hi All,

I have different type of file (.txt,.csv,.xml) format in my current directory. My requirement is that I need to remove the last character from the file format.

Example
count.txt$
csp_rules.csv^
Date.xml~

Need Output:
count.txt
csp_rules.csv
Date.xml

How to do that?. Any help is really appreciated.
# 2  
Old 10-03-2011
AWK
Hi,
Try this code,

Code:
ls -ltr | awk 'BEGIN{OFS="";}$8 !~ /^$/{a=length($8);b=substr($8,0,a-1);print b;}'

Cheers,
RangaSmilie
# 3  
Old 10-03-2011
or use sed as its simplest:
Code:
ls -lah |sed 's/.$//'

# 4  
Old 10-03-2011
really thanks for quick response and thanks for your timely help
# 5  
Old 10-03-2011
using nawk ..
Code:
$ ls -ltr | nawk '{sub(/.$/, "")};1'

# 6  
Old 10-03-2011
You may want to rename the files as a next step, in which case it becomes handy to do it in the shell.

So for example - Put the below into a script to auto-rename the specified files. Otherwise use "ls | while read FILENAME" in stead of the below "ls $* | while read FILENAME"

Code:
#!/bin/sh
ls $* | while read FILENAME
do
  echo Renaming $FILENAME to ${FILENAME%?}
  mv $FILENAME ${FILENAME$?}
done

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