When you search the bash manpage for "modulo", you'll find nothing. Bash
of course does support the modulo function ("%") as part of the
arithmetic evaluation, but it is labelled "remainder" in the manpage.
Therefore, I suggest this little documentation patch:
diff --git a/doc/bash.1 b/doc/bash.1
index ec41462..eabb180 100644
--- a/doc/bash.1
+++ b/doc/bash.1
@@ -4106,7 +4106,7 @@ logical and bitwise negation
exponentiation
.TP
.B * / %
-multiplication, division, remainder
+multiplication, division, remainder (modulo)
.TP
.B + \-
addition, subtraction
diff --git a/doc/bashref.texi b/doc/bashref.texi
index eca3c26..c29fec2 100644
--- a/doc/bashref.texi
+++ b/doc/bashref.texi
@@ -6607,7 +6607,7 @@ logical and bitwise negation
exponentiation
@item * / %
-multiplication, division, remainder
+multiplication, division, remainder (modulo)
@item + -
addition, subtraction
Cheers,
-Sven
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