CODEWITHSUNDEEP
arraysbash
Chedi Bechikh
Chedi Bechikh

Reputation: 173

Read a file and affect the splitting result in an array with bash

My code read a file by line and split each line by a comma ; or space and the results is affected to an array, but the proble is that i can't read the elmen of the array

#!/bin/bash
filename="$1"
while read -r line
do
name=$line
    echo "Name read from file - $name"
 arr=$(echo $name | tr ";" "\n")

echo ${arr[1]}

for x in $arr
do
    echo "> [$x]"
var1=$x
var2=$x
done

done < "$filename"

the problem is in the command:

echo ${arr[1]}

the file that i use contain line :

car; vehicle
computer;apple

Upvotes: 0

Views: 63

Answers (1)

anubhava
anubhava

Reputation: 785376

To loop through an array:

for x in "${arr[@]}"; do
    echo "> [$x]"
done

The ${arr[@]} expansion will include the entire array, while $arr alone only includes the first array element.

However if you use read -ra with custom IFS then you can directly read each delimited line into an array:

while IFS=';' read -ra arr; do
   printf "[%s]\n" "${arr[@]}"
   echo '----------'
done < file

Output:

[car]
[vehicle]
----------
[computer]
[apple]
----------

Upvotes: 2

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