how to add file in current dir to an array

Question

#! /bin/bash


dir=$(find . -type f)

echo ${dir[0]}
echo "This is dir[0]"
echo ${dir[1]}

I want to add all the files recursively in the current dir into an array arr[], but above code fails,

zhangyf@zhangyf-desktop:~/test/avatar$ ./new.sh 
./daily_burn.sh ./test.sh ./.gitignore ./new.sh 
This is dir[0]

dir is not an array in this code. What is the correct way ? Thanks !

Answer 1

dir=(`find . -type f`)

echo ${dir[0]}
echo ${dir[1]}

Answer 2

dir=$(find . -type f)

should be

dir=(`find . -type f`)

Answer 3

Here's a small complete shell test for what you want - execute it somewhere safe, e.g. while in /tmp:

# Prepare
rm -rf root

mkdir root
mkdir root/1
touch root/1/a
touch root/1/b
#touch root/1/"b with spaces"
mkdir root/2
touch root/2/c
mkdir root/2/3
touch root/2/3/d

# Find
echo --- Find
find root

# Test
echo --- Test
files=(`find root -type f`)
echo $files

# Print whole array
flen=${#files[*]}
for (( i=0; i < $flen; i++ )); do
  echo files[$i] = ${files[i]}
done

The output of this is:

--- Find
root
root/1
root/1/a
root/1/b
root/2
root/2/c
root/2/3
root/2/3/d
--- Test
root/1/a
files[0] = root/1/a
files[1] = root/1/b
files[2] = root/2/c
files[3] = root/2/3/d

Beware, however, of spaces in file - if you uncomment the commented touch above by removing # in front of this line:

#touch root/1/"b with spaces"

you will get the following:

--- Find
root
root/1
root/1/b with spaces
root/1/a
root/1/b
root/2
root/2/c
root/2/3
root/2/3/d
--- Test
root/1/b
files[0] = root/1/b
files[1] = with
files[2] = spaces
files[3] = root/1/a
files[4] = root/1/b
files[5] = root/2/c
files[6] = root/2/3/d

Obviously, you can do something like this:

• Capturing output of find . -print0 into a bash array

Hope this helps.