I have the following file
Hello
World
my
name
is
FalcoGer
And I wish to concatenate the strings of each line.
I wrote the following script to do just that.
#! /usr/bin/bash
myFile=/home/FalcoGer/testfile.txt
result=""
cat $myFile | while read line
do
result+="$line "
done
echo Result: $result
However I only get Result: with an empty string. When I print it from within the loop it seems to work just fine. What's wrong with this script and how do I fix it?
1 Answer
Using the pipe essentially creates a new script with a new scope. You can avoid the pipe like so:
#! /usr/bin/bash
myFile=/home/FalcoGer/testfile.txt
result=""
while read -r line
do
result+="$line "
done < $myFile
echo Result: $result
