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rename-files.sh
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rename-files.sh
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#!/bin/bash
# Bash script to enable easy standardizing of file name formatting
TEST_MODE=false
VERBOSE_MODE=false
OTHER_ARGUMENTS=()
DEFAULT_VALUE=-1
renameType=DEFAULT_VALUE
# Loop through arguments and process them
for arg in "$@"
do
case $arg in
-v|--verbose) #verbose
VERBOSE_MODE=true
shift
;;
-d|--dry-run) #dry-run
TEST_MODE=true
shift
;;
-p |--pascal-case)
renameType=1
shift
;;
-s |--snake-case)
renameType=2
shift
;;
-h |--hyphen-case)
renameType=3
shift
;;
*)
OTHER_ARGUMENTS+=("$1")
shift # Remove generic argument from processing
;;
esac
done
# check if filename was given as an input
# TODO handle multiple filenames or folders
if (( ${#OTHER_ARGUMENTS[@]} < 1 )) ; then
# TODO handle absolute path
echo "Input (relative) path of folder with files or a filename"
echo "folder format: 'folder/' filename format: 'folder/filename.txt' "
echo "To test, input 'test/'"
read filenameOrFolder
else # we were passed in the foldername
filenameOrFolder=${OTHER_ARGUMENTS[0]}
fi
# see if we need to prompt for rename type
if (( $renameType == $DEFAULT_VALUE )) ; then
echo "Take an input of rename type: (enter 1, 2, or 3)"
echo "(1) PascalCase (ILikeCats123.txt)"
echo "(2) snake_case (i_like_cats_123.txt)"
echo "(3) hyphen-case (i-like-cats-123.txt)"
# # TODO: camel case
read renameType
fi
re='^[1-3]$'
if ! [[ $renameType =~ $re ]]
then
echo "Error: Not a number or not in the domain" >&2; exit 1
fi
# # tester, comment this out
# TEST_RUN=false
# if $TEST_RUN ; then
# echo "using test run files"
# renameType=2 # tester
# filenameOrFolder="test/" # tester
# # filenameOrFolder="test/test1.txt" #tester
# fi
if $TEST_MODE ; then
echo "Test mode"
fi
# TODO: handle both relative and absolute paths
parentPath=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
function moveToRenamedFile(){
local currPath="$1"
local src="$2"
local dest="$3"
if $VERBOSE_MODE || $TEST_MODE; then
echo "$src --> $dest"
fi
# dest is not the same as src and dest does not already exist
if [[ $src != $dest ]] && [[ ! -a $dest ]]; then
# only move if not test mode
if ! $TEST_MODE ; then
mv "$currPath/$src" "$currPath/$dest"
fi
fi
}
# else a file
# current directory
if [[ "$filenameOrFolder" == '' || "$filenameOrFolder" == '/' ]]; then
echo "Disabled renaming of the current directory (for safety)"
else # for sub folders and file
currPath="$parentPath/$filenameOrFolder"
# make sure it exists
if [[ -e "$filenameOrFolder" ]]; then
# for directories
if [[ -d "$filenameOrFolder" ]]; then
iterfolder="$currPath*"
printf "Renaming files in folder: $currPath \n"
# for file
elif [[ -f "$filenameOrFolder" ]]; then
iterfolder="$currPath"
printf "Renaming file: $currPath \n"
else
echo "Error: input not a folder or filename"
fi
else
echo "Error: filename or folder does not exist"
exit 1
fi
# print converstion case
case $renameType in
1)
printf "Pascal Case Conversion \n"
;;
2)
printf "Snake Case Conversion \n"
;;
3)
printf "Hyphen Case Conversion \n"
;;
*) # default
echo "Error: Invalid rename type"
exit 1
;;
esac
for fullfile in $iterfolder; do
filename="${fullfile##*/}"
extension="${filename##*.}"
filename="${filename%.*}"
currPath="$(dirname "${fullfile}")"
# ignore filenames without extensions, ignore folders
# TODO have a flag that bypasses this
if [[ "$extension" == "$filename" ]]; then
if $VERBOSE_MODE ; then
echo "Bypassing renaming of:" $filename
fi
continue
fi
case $renameType in
1)
# printf "PASCAL CONVERSION: "
seed="sed -r 's/(^|_|-| |\.)+([A-Za-z0-9])/\U\2/g'"
dest=$(echo $filename | eval $seed)."$extension"
src="$filename.$extension"
moveToRenamedFile "$currPath" "$src" "$dest"
;;
2)
# printf "UNDERSCORE CONVERSION: "
# lowercase everything
# sed -e "s/\(.*\)/\L\1/"
# replace all dots, dashes, spaces with an underscore # replace capital letters with underscore and lowercased letter # remove leading underscores
seed="sed -r 's/(^|_|-| |\.)+([A-Za-z0-9])/\U\2/g' | perl -pe 's/([A-Z]|[0-9]+|(?<=[0-9])[a-z]|(?![a-z])[0-9]+)/_\L\1/g' | sed -r 's/^_+//g'"
dest=$(echo $filename | eval $seed)."$extension"
src="$filename.$extension"
moveToRenamedFile "$currPath" "$src" "$dest"
;;
3)
# printf "HYPHEN CONVERSION: "
# convert to pascal case # replace capital letters with dash and lowercased letter # remove leading dash
# seed="sed -r 's/(^|\.|_| )/-/g' | sed -r 's/([A-Z])/-\L\1/g' | sed -r 's/^-+//g'"
seed="sed -r 's/(^|_|-| |\.)+([A-Za-z0-9])/\U\2/g' | perl -pe 's/([A-Z]|[0-9]+|(?<=[0-9])[a-z]|(?![a-z])[0-9]+)/-\L\1/g' | sed -r 's/^-+//g'"
# ^(?!(?:[^|]*\|){2})
dest=$(echo $filename | eval $seed)."$extension"
src="$filename.$extension"
moveToRenamedFile "$currPath" "$src" "$dest"
;;
*) # default
echo "Error"
exit 1
;;
esac
done
fi