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Top Forums UNIX for Beginners Questions & Answers How do I redirect output from "find", either to a file or another command? Post 303043870 by arghvark on Sunday 9th of February 2020 06:06:33 PM
Old 02-09-2020
There is no script. I am entering this command on the command line.

I'm not just "suppressing the error messages"; I am glad to be reminded about /dev/null, but what I'm trying to do here is understand how to use find in this way -- if it outputs things that I can filter with grep, then how do I pipe the output to the grep command?

I don't know what the contents of the root folder have to do with anything; it hasn't changed since I installed the Raspberry Debian yesterday. In case you can make some use of it, here it is:
Code:
total 72
drwxr-xr-x   2 root root  4096 Feb  5 10:52 bin
drwxr-xr-x   3 root root  3584 Dec 31  1969 boot
drwxr-xr-x  16 root root  3780 Feb  9 11:33 dev
drwxr-xr-x 118 root root  4096 Feb  9 11:19 etc
drwxr-xr-x   3 root root  4096 Feb  5 10:47 home
drwxr-xr-x  17 root root  4096 Feb  5 11:00 lib
drwx------   2 root root 16384 Feb  5 11:22 lost+found
drwxr-xr-x   3 root root  4096 Feb  8 21:46 media
drwxr-xr-x   2 root root  4096 Feb  5 10:42 mnt
drwxr-xr-x   6 root root  4096 Feb  5 10:58 opt
dr-xr-xr-x 152 root root     0 Dec 31  1969 proc
drwx------   4 root root  4096 Feb  5 11:24 root
drwxr-xr-x  25 root root   760 Feb  8 23:28 run
drwxr-xr-x   2 root root  4096 Feb  8 19:16 sbin
drwxr-xr-x   2 root root  4096 Feb  5 10:42 srv
dr-xr-xr-x  12 root root     0 Feb  9 12:09 sys
drwxrwxrwt  13 root root  4096 Feb  9 16:17 tmp
drwxr-xr-x  11 root root  4096 Feb  5 10:53 usr
drwxr-xr-x  12 root root  4096 Feb  9 11:17 var

I know my process does not have write privilege on the folder, I didn't think I would need it, and evidently you don't either.

So my question is -- if this is the correct command, then why am I being told "Permission denied" when I run it?
 

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File::Find::Rule::Procedural(3pm)			User Contributed Perl Documentation			 File::Find::Rule::Procedural(3pm)

NAME
File::Find::Rule::Procedural - File::Find::Rule's procedural interface SYNOPSIS
use File::Find::Rule; # find all .pm files, procedurally my @files = find(file => name => '*.pm', in => @INC); DESCRIPTION
In addition to the regular object-oriented interface, File::Find::Rule provides two subroutines for you to use. "find( @clauses )" "rule( @clauses )" "find" and "rule" can be used to invoke any methods available to the OO version. "rule" is a synonym for "find" Passing more than one value to a clause is done with an anonymous array: my $finder = find( name => [ '*.mp3', '*.ogg' ] ); "find" and "rule" both return a File::Find::Rule instance, unless one of the arguments is "in", in which case it returns a list of things that match the rule. my @files = find( name => [ '*.mp3', '*.ogg' ], in => $ENV{HOME} ); Please note that "in" will be the last clause evaluated, and so this code will search for mp3s regardless of size. my @files = find( name => '*.mp3', in => $ENV{HOME}, size => '<2k' ); ^ | Clause processing stopped here ------/ It is also possible to invert a single rule by prefixing it with "!" like so: # large files that aren't videos my @files = find( file => '!name' => [ '*.avi', '*.mov' ], size => '>20M', in => $ENV{HOME} ); AUTHOR
Richard Clamp <richardc@unixbeard.net> COPYRIGHT
Copyright (C) 2003 Richard Clamp. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Find::Rule perl v5.12.4 2011-09-19 File::Find::Rule::Procedural(3pm)
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