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I thought that a a Bash variable (of size 1) can hold any byte from 0 to 255. So any bitstream (in particular files) can fit in a Bash variable. But according to a comment I received, it cannot hold some bytes such as 0. So what are the allowed values (except for alphanumeric characters of course )?

Jeff Schaller
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confused_bash_user
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  • Related: [How do I use null bytes in Bash?](https://unix.stackexchange.com/questions/174016/how-do-i-use-null-bytes-in-bash) – steeldriver Oct 24 '20 at 01:51

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