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Top Forums UNIX for Dummies Questions & Answers Find exit with success with non executable directory Post 302972676 by chebarbudo on Monday 9th of May 2016 11:36:13 AM
Old 05-09-2016
Find exit with success with non executable directory

Hi there,

I'm quite surprised by the following behavior of find.
Code:
$ find -ls                  # I have a directory and a file in it
  8145    4 drwxr-xr-x   3 me me     4096 May 10 09:36 .
    87    4 drwxr-xr-x   2 me me     4096 May 10 09:36 ./dir
    88    0 -rw-r--r--   1 me me        0 May 10 09:36 ./dir/file
$ chmod 111 dir/
$ find -ls; echo $?         # If the directory is not readable, find fails because it cannot explore it
  8145    4 drwxr-xr-x   3 me me     4096 May 10 09:36 .
    87    4 d--x--x--x   2 me me     4096 May 10 09:36 ./dir
find: `./dir': Permission denied
1
$ chmod 444 dir/
$ find -ls; echo $?         # If the directory is not cd-able, find does NOT fail with an error although it fails to find the file in it
  8145    4 drwxr-xr-x   3 me me     4096 May 10 09:36 .
    87    4 dr--r--r--   2 me me     4096 May 10 09:36 ./dir
0

I'm using a fresh install of Debian 8 jessie
Code:
$ uname -a; cat /etc/debian_version
Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u4 (2016-02-29) x86_64 GNU/Linux
8.3

How can I make sure find fails if it cannot list all files and folders?

Thanks in advance

Santiago

Last edited by chebarbudo; 05-10-2016 at 04:58 AM.. Reason: more details
 

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

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 v5.16.2 2011-09-19 File::Find::Rule::Procedural(3)
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