On Sun, Sep 19, 2021, 4:07 PM Lawrence Velázquez <v...@larryv.me> wrote:
> On Sun, Sep 19, 2021, at 3:25 PM, 積丹尼 Dan Jacobson wrote:
> > $ help for
> > only mentions
> > for name [ [ in [ word ... ] ] ; ] do list ; done
> > and needs to be updated to mention
> > for (( expr1 ; expr2 ; expr3 )) ; do list ; done
>
> Not particularly intuitive, but:
>
> bash-5.1$ help 'for (('
> for ((: for (( exp1; exp2; exp3 )); do COMMANDS; done
> Arithmetic for loop.
>
> Equivalent to
> (( EXP1 ))
> while (( EXP2 )); do
> COMMANDS
> (( EXP3 ))
> done
> EXP1, EXP2, and EXP3 are arithmetic expressions. If any expression is
> omitted, it behaves as if it evaluates to 1.
>
> Exit Status:
> Returns the status of the last command executed.
>
> --
> vq
>
And
help 'for*'
(No space) gets them both.
>
