Shell Programming and Scripting

1.txt 2.txt 3.txt 4.txt

one two three four

1.txt to /one
2.txt to /two
3.txt to /three
4.txt to /four

!#/usr/bin/bash
file=(1.txt 2.txt 3.txt 4.txt)
dir=(one two three four)

for i in ${file[@]};do
        cp $i ${dir[@]}
        done

file=( 1.txt 2.txt 3.txt 4.txt )
dir=( one two three four )
c=0

for i in ${file[@]};
do
        cp $i ${dir[$c]}
        (( ++c ))
done

$ file=(1.txt 2.txt 3.txt 4.txt)
$ dir=(one two three four)
$ echo ${#dir[*]}
4
$ for ((i=0; i<${#file[@]}; i++)); do echo cp ${file[i]} ${dir[i]}; done
cp 1.txt one
cp 2.txt two
cp 3.txt three
cp 4.txt four