Bash read output?

Question

Say I execute a bash script and the output is:

Test1: Some text...
Test2: Some text...
Test3: Some text...

How would I, in the same bash script, store the above output as one or more variables?

The ideal solution would be for it to be ready to be used in a conditional like so: (line one of output would be stored in $ln1 etc.)

if [ $ln1 = "Test1: Some text..." ] ; then

Answer 1

So you want

output=$(command)
while IFS= read -r line; do
    process "$line"
done <<< "$output"

See "Here strings" in the Bash manual.

or process substitution

while IFS= read -r line; do
    process "$line"
done < <(command)

---

Coming back to this after a few years, now I'd read the output of the command into an array:

readarray -t lines < <(command)
for line in "${lines[@]}"; do
    do-something-with "$line"
done