Wups: Re: Compare folders and find missing files

[Francis Grizzly Smit]

On 25/03/2020 23:54, Ken D'Ambrosio wrote:
> D'oh.  I checked my one-liner, noted I had a goof or two... and then 
> sent it without fixing.
> Gonna be that type of day, I'm afraid.  New-and-improved (a/k/a 
> "functional") below.
>
> On 2020-03-25 08:52, Ken D'Ambrosio wrote:
> [...]
> less elegant, is more explicit, and doesn't
>> repeatedly walk the compared tree:
> cd /media/project && find . -type f | while read fname; do ls
> ~Documents/sub-tree/$fname > /dev/null 2> /dev/null || echo "$fname
> not there."; done

cd /media/project

for f in *

do

      if [ ! -e ~Documents/sub-tree/"$f" ]

      then

          echo "$f missing."

      fi

done

is good for one level, but I'd use diff -r /media/project/ 
~Documents/sub-tree/
for a more complex (deeper) case


>>
>> Note that there will be a superfluous -- but functionally noop -- "./"
>> in the path shown of any missing files.
>>
>> None of which invalidates the point about diff possibly being the most
>> efficient method.
>>
>> $.02,
>>
>> -Ken
>
-- 

    .~.     In my life God comes first....
    /V\         but Linux is pretty high after that :-D
   /( )\    Francis (Grizzly) Smit
   ^^-^^    http://www.smit.id.au/

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