Re: [TUHS] The UNIX Command Language (1976)

< file grep foo works. Niklas Den fre 4 dec. 2020 kl 14:16 skrev Tyler Adams &lt;coppero1237(a)gmail.com&gt;: > I find cat file | grep foo simpler because it reads Left to Right. > > Tyler > > > On Fri, Dec 4, 2020 at 1:34 PM Andy Kosela &lt;akosela(a)andykosela.com&gt; > wrote: > >> On 12/4/20, arnold(a)skeeve.com &lt;arnold(a)skeeve.com&gt; wrote: >> > Dan Cross &lt;crossd(a)gmail.com&gt; wrote: >> > >> >> This has always struck me as particularly elegant in scripts. >> Consider: >> >> >> >> cat "$@" | whatever >> >> >> >> (Or you may prefer `cat $* | whatever`) >> >> >> >> Now one's script can take any number of file arguments or stdin, even >> if >> >> the filter does not. >> > >> > I think Dan has hit the heart of the matter. People are used to using >> > cat for multiple files to start pumping data down a pipeline, so they >> > continue to do so even when there's only one file. >> > >> >> The classic example is: >> >> $ cat file | grep foo >> >> instead of the simpler: >> >> $ grep foo file >> >> It appears cat(1) and pipe(7) are deeply ingrained in people's brains. >> >> --Andy >> >