bash is hurling

[Linux for blind general discussion]

wc -l only returns one number.


On Wed, 17 Feb 2021, Linux for blind general discussion wrote:

> the "wc" command is returning more than one word, is the problem with "let".
> you don't need the "let" anyway, so:
>
>   cj=`wc -l chk-jenux.log`
>
> would be enough. but if you want only the count of lines, you either have to
> 1: isolate the first word from "wc" (the line count):
>
>   realcj=${cj%% *}
>
> or
> 2: do the "wc" without a file name:
>
>   cj=`cat chk-jenux.log | wc -l`
>
> note that the first example has a few failure modes, although there are endless
> other ways to isolate a given word from a multi-word string. i've always
> used the second example.
>
> On Tue, Feb 16, 2021 at 11:08:58AM -0500, Linux for blind general discussion wrote:
>> I think I need a better shell.
>> I wanted to get a line count into a variable and bash doesn't like what
>> I'm doing to make that happen.  The code is:
>> let "cj=`wc -l chk-jenux.log`"
>
>