I have taken input from user into array. But I need to use them as comma separated list. How can I do that? Input in my case is path like (/usr/tmp/). I appreciate your help and time. Thank you !
Example:
read "Number of subdirectories : " count
for i in $(seq 1 $count)
do
read -e -p " Subdir : $i: " arr[$i]
done
Expected Result:
$var = {arr[1],arr[2],arr[3],......}
If you have an array like this:
$ declare -p arr
declare -a arr='([1]="abc" [2]="def")'
You can display it in comma-separated format:
$ (IFS=,; echo "{${arr[*]}}")
{abc,def}
That output can be saved in a shell variable using command substitution:
$ var=$(IFS=,; echo "{${arr[*]}}")
$ echo "$var"
{abc,def}
var=$(IFS=,; echo "{${arr[*]}}"). The command that you say you ran was $(IFS=,; echo "{${dir_exclude[*]}}"). Those are two very different commands and they produce two very different results.