Linux find command permission denied

Question

I want to filter out the unnecessary information "Permission denied". these are outputs from command "find -type f -name sources.list"

find: './run/lxcfs': Permission denied
find: './run/sudo': Permission denied
find: './run/lvm': Permission denied
find: './tmp/systemd-private-99eef94819d84080adc7df3e60efee5b-systemd-timesyncd.service-HE48k9': Permission denied
find: './lost+found': Permission denied
find: './dev/vboxusb': Permission denied
find: './root': Permission denied
./etc/apt/sources.list
find: './etc/sudoers.d': Permission denied

I tried to use "! -readable -prune" in conjunction with the find command as above to suppress the "Permission denied" information, but it still doesn't work.

Possible duplicate of [How can I exclude all "permission denied" messages from "find"?](http://stackoverflow.com/questions/762348/how-can-i-exclude-all-permission-denied-messages-from-find) — Jonathan Leffler, May 28 '16 at 00:05

score 6 · Answer 1 · answered May 27 '16 at 23:51

6

try the following

find -type f -name sources.list 2>/dev/null

This will redirect stderr output stream, which is used to report all errors, including the "Access denied" one, to null device.

answered May 27 '16 at 23:51

Vtik

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Thank you so much, in stead of redirect the stream, is it possible to bypass those folders that i don't have read permission ? – jianrui May 28 '16 at 00:16
Not sure, but, afaik, no ! – Vtik May 28 '16 at 00:22

Reinstate Monica Please · Answer 2 · 2016-05-28T20:37:43.903

5

Something like this should work

find -type d ! -readable -prune -o -type f -name sources.list

edited May 28 '16 at 20:37

answered May 28 '16 at 17:35

Reinstate Monica Please

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score 1 · Answer 3 · answered Aug 25 '16 at 16:28

The following worked for me:

find / -mount -readable -name "<whatever>" -print

Here I only wanted to search the root file system, and not descent into any of the mounted file systems. Hence -mount.

The problem files that were throwing errors were not readable (yielding "permission denied"). Hence -readable.

The rest is obvious.

(Note: In Ubuntu 16.04 the files in /var/lib/lxcfs are not readable, even for root. The above solved the problem for me.)

sumitya · Answer 4 · 2016-05-28T08:46:04.650

-1

First you can check the ACL of folders with the help of

getfacl -R /foldername

if read permission is there to particular folder,then run;

find foldername -type f -name sources.list

else skip command

edited May 28 '16 at 08:46

answered May 28 '16 at 08:39

sumitya

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Linux find command permission denied

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