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Recursive chmod script for dirs and/or files
#!/bin/sh
#
# chmodr.sh
#
# author: Francis Byrne
# date: 2011/02/12
#
# Generic Script for recursively setting permissions for directories and files
# to defined or default permissions using chmod.
#
# Takes a path to recurse through and options for specifying directory and/or
# file permissions.
# Outputs a list of affected directories and files.
#
# If no options are specified, it recursively resets all directory and file
# permissions to the default for most OSs (dirs: 755, files: 644).
# Usage message
usage()
{
echo "Usage: $0 PATH -d DIRPERMS -f FILEPERMS"
echo "Arguments:"
echo "PATH: path to the root directory you wish to modify permissions for"
echo "Options:"
echo " -d DIRPERMS, directory permissions"
echo " -f FILEPERMS, file permissions"
exit 1
}
# Check if user entered arguments
if [ $# -lt 1 ] ; then
usage
fi
# Get options
while getopts d:f: opt
do
case "$opt" in
d) DIRPERMS="$OPTARG";;
f) FILEPERMS="$OPTARG";;
\?) usage;;
esac
done
# Shift option index so that $1 now refers to the first argument
shift $(($OPTIND - 1))
# Default directory and file permissions, if not set on command line
if [ -z "$DIRPERMS" ] && [ -z "$FILEPERMS" ] ; then
DIRPERMS=755
FILEPERMS=644
fi
# Set the root path to be the argument entered by the user
ROOT=$1
# Check if the root path is a valid directory
if [ ! -d $ROOT ] ; then
echo "$ROOT does not exist or isn't a directory!" ; exit 1
fi
# Recursively set directory/file permissions based on the permission variables
if [ -n "$DIRPERMS" ] ; then
find $ROOT -type d -print0 | xargs -0 chmod -v $DIRPERMS
fi
if [ -n "$FILEPERMS" ] ; then
find $ROOT -type f -print0 | xargs -0 chmod -v $FILEPERMS
fi

Thanks, did and will save me a lot time.

This is beautiful. Thank you.

mclinn commented Jul 27, 2017

Excellent! Thanks for sharing this!

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