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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: iso646.h
Date: Fri, 02 Feb 2024 08:39:28 -0800
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Janis Papanagnou <janis_papanagnou+ng@hotmail.com> writes:
> On 01.02.2024 21:09, Keith Thompson wrote:
>> [...] I would use semicolons instead:
>> 
>>     $ if file /tmp/garage.jpg | grep JPEG > /dev/null ; then echo "it is a jpeg" ; fi
>>     it is a jpeg
>> 
>> (I might also use "grep -q" rather than redirecting to /dev/null.)
>
> And probably also avoid multi-line code (to prevent the ^J confusion)
>
>   file /tmp/garage.jpg | grep -q JPEG && echo "it is a jpeg"

Sure, that works, but I usually find the "if" form clearer.  (It's not
multi-line.)

In C code or in a shell script, I'd write a similar "if" statement
across multiple lines.  In an interactive shell, I commonly write
complex commands lie that on one line.  YMMV.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Medtronic
void Void(void) { Void(); } /* The recursive call of the void */