bash is hurling

Linux for blind general discussion blinux-list at
Wed Feb 17 09:23:39 UTC 2021

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%% *}

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`"

Henry Yen                                       Aegis Information Systems, Inc.
Senior Systems Programmer                       Hicksville, New York

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