Automatically escape strings in BASH

[^rooker]

[PROBLEM]
If you're dealing with input strings in bash which contain special characters like spaces " ", brackets "(", etc... - it's necessary to escape those characters.

For example, if you'd try to call a script and pass it a string as argument which contains special characters, like this:

./myscript "my test file (1).txt"

it won't be enough to read it like this:

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FILENAME="$1"

[SOLUTION]

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FILENAME=$(printf '%q' "$1")

Now, $FILENAME will contain the escaped string as follows:

my\ test\ file\ \(1\).txt