[bug #55718] Command-line interface gotchas

[INVALID.NOREPLY]

Follow-up Comment #1, bug #55718 (project grub):

On (info "(grub) echo")

...
     '\t'
          horizontal tab

     '\v'
          vertical tab

     When interpreting backslash escapes, backslash followed by any
     other character will print that character.

Say if you mean "any other character than the above" or not.

P.S., add:
Just as in shell,
> echo \\\\
\\
> echo -e \\\\
\


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