Bash scripting & array pushing

Question

I'm trying to make a script which will find a files, take their dirnames and then go there and do something. I have a problem with adding elements to array, who I want to be my dirnames container.

Code looks like this:

dirnames=()
while read -r line; do
        echo "Looking for dirname "$line
        dirname=$( dirname $(egrep -lir --include=pom.xml "<name>"$line"</name>" $application_dir))
        dirnames+=($dirname)
done < $modules_file

echo "Acquired dirnames"
echo $dirnames

And this is the answer:

Looking for dirname a
Looking for dirname b
Looking for dirname c
Acquired dirnames
/home/user/dev/workspace/a

I have only first dir in my "array". It looks like every another iteration is missing, and i know that these other dirnames are found because of i trying to swap lines.

I was reading a lot about arrays in bash, but everywhere this kind of approach works fine.

Any advice?

paddy · Accepted Answer · 2015-07-29 06:46:52Z

1

Bash syntax to expand the entire array is this:

echo ${dirnames[*]}

Or you can access individual elements. e.g.

echo ${dirnames[1]}

Or loop over array:

for d in ${dirnames[*]}; do
    echo $d
done

answered Jul 29, 2015 at 6:46

paddy

63.7k7 gold badges68 silver badges109 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Lidjan Over a year ago

Ohh crap - thanks for this, I saw somewhere that someone was listing whole array with just name of array. Thanks a lot

Drona · Accepted Answer · 2015-07-29 06:53:26Z

0

I think the problem is with the way you are printing your dirnames array. ${dirnames} will only print the first element. Try printing it like this:

echo ${dirnames[@]}

answered Jul 29, 2015 at 6:53

Drona

7,2741 gold badge31 silver badges35 bronze badges

Collectives™ on Stack Overflow

Bash scripting & array pushing

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related