Unix Programming - Write a korn shell script for renaming the filenames of the files stored in a folder to lower case.

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Write a korn shell script for renaming the filenames of the files stored in a folder to lower case.

Total Answers and Comments: 4

Last Update: May 27, 2009 Asked by: renjiraj

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November 29, 2007 06:47:25

amitmittal

Member Since: November 2007 Contribution: 1

RE: Write a korn shell script for renaming the filenames of the files stored in a folder to lower case.

folder $1

list_of_files `ls $folder`

for file in $list_of_files;
do
mv $file `echo $file | tr [:upper:] [:lower:]`
done;

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February 18, 2009 21:19:56

ENIAC

Member Since: February 2009 Contribution: 2

RE: Write a korn shell script for renaming the filenames of the files stored in a folder to lower case.

It picks up directory names inside the folder and renames them.
I'll be building a proper KSH version soon enough. Stay tuned.

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February 23, 2009 19:26:38

ENIAC

Member Since: February 2009 Contribution: 2

Here's the GAWK version - simplified

#!/bin/gawk -f
#
# LowerFiles.gawk
#
# Using GAWK we can strip off the file name from the full path
# and rename it only when necessary (skip files that are already lowercase.)
# Usage example
#
# find . -type f -print | ./LowerFiles.gawk | ksh
#
# If you skip the 'ksh' portion you can get a dry run
# of the command output or redirect
#

BEGIN {
FS "/";
}
{
if ( $NF ~ /[ABCDEFGHIJKLMNOPQRSTUVWXYZ]/ ) {
printf "mv "$0" ";
for (i 1; i<NF; i++) {
printf $i"/";
}

printf tolower($NF);
printf "n";
}
}

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May 27, 2009 07:41:55

Rohit_Ash

Member Since: May 2009 Contribution: 6

RE: Write a korn shell script for renaming the filenames of the files stored in a folder to lower case.

Tested script.

#! /usr/bin/ksh
echo "start"
for name in `ls -1`
do
echo "name $name"
name1 `echo $name | tr [A-Z] [a-z]`;
echo "name1 $name1"
mv $name $name1;
if [ -z $name ]
then
exit;
fi
done

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