animals
├── bird
│   ├── bird_1.rar
│   ├── bird_2.rar
│   ├── bird_3.rar
│   ├── bird_4.rar
│   ├── bird_5.rar
│   └── penguin
│       ├── p　enguin_1.txt
│       ├── p　enguin_2.txt
│       ├── p　enguin_3.txt
│       ├── p　enguin_4.txt
│       └── p　enguin_5.txt
├── cat
│   ├── cat_1.rar
│   ├── cat_2.rar
│   ├── cat_3.rar
│   ├── cat_4.rar
│   └── cat_5.rar
└── dog
    ├── dog_1.rar
    ├── dog_2.rar
    ├── dog_3.rar
    ├── dog_4.rar
    └── dog_5.rar

#!/bin/sh
find "$@"
  -type f
  -name '*.rar'
  -exec sh -c
    'for rar in "$@"; do echo "$rar"; done'
    sh {} +
;

#!/bin/sh
find "$@"
  -type f
  -name '*　*'
  -print
|while IFS= read -r name; do
  echo "$name"
done

#!/bin/bash

# 実行： ./rar2zip.sh [フォルダのパス]
#
# 以下のコマンドがいる
# realpath, unrar, zip, mktemp

function rar2zip {
    rar="$(realpath "$1")"
    zip="$(realpath "${2:-$(basename "$rar" .rar).zip}")"
    d=$(mktemp -d /tmp/rar2zip.XXXXXX)
    cd "$d"
    unrar x "$rar"
    zip -r "$zip" *
    mv -f $zip ${rar%/*}
    cd -
    rm -r "$d"
}

FILES=(`find ${1} -name *.rar -print`)

for rar in ${FILES[@]}
do
    rar2zip $rar
done

#!/bin/bash

BLANK_FILES=$(find ${1} -type f -print | grep '[[:blank:]]')

for blank in ${BLANK_FILES[@]}
do
    #echo $blank
    mv "$blank" "${blank//[[:blank:]]}"
done

find . -type f -name "*[[:blank:]]*" -exec bash -c 'mv "$1" "${1//[[:blank:]]}"' _ {} ;