Essential Books

Read fields of a string into an array

suggest change

Let’s assume that the field separator is : 

var='1:2:3:4:
newline'
arr=()
while IFS= read -d : -r field || [ -n "$field" ]; do
   arr+=("$field")
done <<< "$var"
echo "${arr[4]}"

Output: 

newline
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Read a file:
*Read a file data stream variable line-by-line andor field-by-field
*Looping through a file line by line
*Looping through the output of a command field by field
*Read lines of a file into an array
*Read lines of a string into an array
*Looping through the output of a command line by line
*Read a file field by field
*Read a string field by field
*Read fields of a file into an array
*Read fields of a string into an array
*Looping through a string line by line
*Reads file etcpasswd line by line and field by field
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