Содержимое скрипта

#!/bin/bash

DIR="./arc"

if [ ! -d $DIR ]; then mkdir $DIR

fi

for x in "$@" do

if [ ! -e "$x" ];then

echo "$x wasn't copied because it doesn't exist" elif [ "$x" -nt "$DIR/$x" ];then

cp $x $DIR && echo "$x copied" else

echo "$x wasn't copied because there's newer copy in the $DIR folder"

fi done

Проверка работы

[dtr@snail ~]$ touch 1 2 4 [dtr@snail ~]$ ls -d arc

ls: невозможно получить доступ к arc: Нет такого файла или каталога [dtr@snail ~]$ ./smartcopy.sh 1 2 4

1 copied

2copied 4 copied

[dtr@snail ~]$ touch 1 [dtr@snail ~]$ ls -l [1-4]

-rw-r--r-- 1 dtr users 0 2011-10-13 20:31 1 -rw-r--r-- 1 dtr users 0 2011-10-13 20:30 2 -rw-r--r-- 1 dtr users 0 2011-10-13 20:30 4 [dtr@snail ~]$ ls -l arc/*

-rw-r--r-- 1 dtr users 0 2011-10-13 20:30 arc/1 -rw-r--r-- 1 dtr users 0 2011-10-13 20:30 arc/2 -rw-r--r-- 1 dtr users 0 2011-10-13 20:30 arc/4 [dtr@snail ~]$ ./smartcopy.sh 1 2 3 4

1 copied

2wasn't copied because there's newer copy in the ./arc folder 3 wasn't copied because it doesn't exist

4 wasn't copied because there's newer copy in the ./arc folder