Case example:
$ variable="$(ls -la)"
So the resulting variable stores some characters, like new line ones:
$ echo "$variable"
total 8
drwxr-xr-x 2 luis wheel 512 May 27 04:15 .
drwxrwxrwt 15 root wheel 1536 May 27 04:15 ..
When I try to replace a string with this variable:
$ echo...
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