Tagged Questions
2
votes
1answer
47 views
how to keep file owner same for newly created files
This question is regarding samba file access.
I have created a folder A, and under folder A created two folders B and C. And also created three users A, B and C.
User A has access to all three ...
0
votes
1answer
49 views
LINUX: Permissions for files: Identify if it is a file or directory, and its access allowed to the world, user, and group [duplicate]
I am having trouble understanding permissions for directories and files in LINUX.
By examining permissions for each of the following files, identify if it is a file or directory, and describe the ...
3
votes
2answers
66 views
How can I backup a directory to NTFS while preserving Unix file attributes?
I want to make a backup of my home directory to an NTFS partition (an unfortunate limitation). However, when I last tried using just cp, the attributes (owner, etc) went away. How can I make a backup ...
2
votes
1answer
88 views
“rm -rf Filename.iso ” Permission denied
Hi I am facing an issue while deleting an .iso file from Linux x86_64 GNU/Linux.
Here are the permissions for the file:
# ls -lrt
-rwxrwxr-x 1 dev devgrp 2687934464 Apr 12 14:13 ...
1
vote
0answers
75 views
Apache created files and its permissions for CentOS 6.x
In short, I have an authenticated HTTP-POST that:
posts a jpg image (created as 666 apache:www) into /directory1 (777 ftpuser:www)
creates /directory2 (created as 666 apache:www) in a 777 ...
3
votes
1answer
25 views
Copy file permissions from user to group
I have a folder with some files, which each have different permissions. Some are read-only, some are read/write, some are read/execute.
How can I copy the permissions from user to group, so that for ...
2
votes
1answer
51 views
View temporary files which exist for milliseconds
I'm trying to debug a program which is not logging the information I need. Fortunately, it does write temporary files which should contain the information. These files are written to a directory like: ...
1
vote
2answers
74 views
Cannot access any files Manjaro Linux
I cannot open any files on my Manjaro Linux laptop. I really can't remember why it happened but I restarted my computer and now I dont have read/write access to any folder or file even though I've ...
1
vote
2answers
106 views
A bunch of files have 777 permissions
I have been learning Python and Bash scripting, and I up to now I have given my scripts 777 permissions. Having learned more about how to set permissions, and knowing this is a bad idea, I ran the ...
16
votes
2answers
737 views
How do I make a file NOT modifiable?
While logged in, I can do the following:
mkdir foo
touch foo/bar
chmod 400 foo/bar
chmod 500 foo
Then I can open vim (not as root), edit bar, force a write with w!, and the file is modified!
How ...
2
votes
3answers
90 views
How does gcc handle file permissions?
The executable files that gcc creates have execution permissions
-rwxrwxr-x
which are different than the permissions that the source file has.
-rw-rw-r--
How does gcc set these permissions ?
1
vote
0answers
36 views
Existing file can not be found? [duplicate]
/usr/share/tipp10$ ll
insgesamt 9408
drwxr-xr-x 3 myname ssl-cert 4096 Feb 26 20:07 ./
drwxr-xr-x 288 root root 12288 Feb 26 20:07 ../
-rwxrwxrwx 1 myname ssl-cert 9480 Okt 6 2010 ...
1
vote
1answer
130 views
File is readable by everyone, but I can't open the file
I'm fairly new to Unix and I have written a script:
SERVER="/usr/local/abc/.../somefile.txt"
OPTION="$1"
if [ x$OPTION = "xtitle" ]
then
grep $OPTION $SERVER
exit
fi
As far as I ...
2
votes
3answers
72 views
How to cp or rm files based on ownership / permission
After a problem with spam, I stopped postfix
postfix stop
and checked through the mailq manually to find hundreds of thousands of unsent spam.
The spam was sent from one of the sites hosted ...
2
votes
1answer
63 views
why cannot rename subdir when parent dir owner is not the same user [duplicate]
Possible Duplicate:
Can’t rename a directory that I own
I am trying to understand why when a dir X is owned by user A cannot rename it when parent dir of X is owned by user B. Can anyone ...
1
vote
1answer
112 views
Group permissions ineffective, permission still denied
I've got a problem with UNIX permissions : I'm working under Debian Squeeze, and one of my scripts, run by www-data, needs to move a file, 23550.zip, placed in the home directory of another user, ...
2
votes
1answer
160 views
how to remove quarantine from file permissions in os x
I downloaded a .pem file and my Mac OS X (10.8.2) added an @ sign at the end of the file permissions. This is causing file permission issues. I can't seem to remove the quarantine flag. I even tried ...
4
votes
2answers
381 views
What does the 'd' mean in ls -al results and what is that slot called?
In Linux, what does the d mean in the first position of drwxr-xr-x? And what are all of the possible letters that could be there, and what do they mean?
I'm trying to learn more about the Linux file ...
3
votes
1answer
63 views
How to display the permissions of a new file in the status line of the Vim editor?
With the following piece of code I get the permissions for an existing file:
augroup Get_file_perm
autocmd!
autocmd BufWinEnter,FileChangedShell * let w:file_perm=getfperm(expand('%:p'))
augroup ...
2
votes
2answers
110 views
Pre-defined umask under a given path [duplicate]
Possible Duplicate:
How to set default file permissions for all folders/files in a directory?
Say I have default umask, umask1. I would like all files/folders that I create/modify under a ...
3
votes
2answers
150 views
Linux isn't sure whether a file exists or not [duplicate]
Possible Duplicate:
Getting “Not found” message when running a 32-bit binary on a 64-bit system
ts3user@...:~/ts3$ dir
CHANGELOG
LICENSE
doc
...
ts3server.pid
ts3server_linux_x86
...
1
vote
1answer
391 views
Samba share file permissions - users can't open files that I create
I have set up an Ubuntu server (12.04 LTS) for samba file sharing. The problem I'm having has to do with files that I create on the server. Other users can't open them because I created them under a ...
1
vote
1answer
185 views
Accessing another user's files
I have a file "abc" with permissions 440 .The owner of this file is "root" and the group of this file is "groupabc" . I have a user "user1" .Is their anyway I can see the contents of files "abc" using ...
4
votes
3answers
168 views
Can't read a file although it's in my group and permissions for group read are set
I encounter a strange problem on a unix/linux machine:
I'm member of a group, let's call it group A and a certain file (which has a different owner) belongs to group A as well. The permissions of ...
0
votes
4answers
2k views
How to permanently change the file/directory permission [closed]
How do I change the permission of file/directories such that I am able to create, edit, delete files/directories anywhere in my system? Currently I am using Ubuntu 12.04.
I tried
sudo chmod 777 -r ...
24
votes
2answers
4k views
Why can rm remove read-only files?
If I create a file and then change its permissions to 444 (read-only), how come rm can remove it?
If I do this:
echo test > test.txt
chmod 444 test.txt
rm test.txt
...rm will ask if I want to ...
5
votes
1answer
107 views
Does the suid bit have any meaning for device files?
Does the suid bit have any special meaning for device files in Linux ?
3
votes
1answer
493 views
Group within group file permissions
I tried finding this on here, but couldn't so sorry if it's a duplicate.
Say I have 2 groups and a user: group1, group2, user1
with the following structure: group1 is a member of group 2, user1 is a ...
5
votes
2answers
435 views
Can files be created with permissions set on the command line?
When creating directories, mkdir -m <mode> <dir> provides for creating one or more directories with the given mode/permissions set (atomically).
Is there an equivalent for creating files, ...
3
votes
1answer
242 views
Can't rename a directory that I own
I have a directory with a big load of sub directories. I own all of them, and the permissions are all 777.
pascal@azazel /box $ ls -al
total 147872
drwxr-xr-x 293 root root 12288 aoû 22 19:44 ...
5
votes
3answers
375 views
chown not permitted, but I have write access. How can I take recursive ownership?
Consider the following scenario:
I have rwx access to a directory as a member of the group id of the directory.
The system admin does not let users run chown (see this thread for details)
How can ...
10
votes
1answer
4k views
How to skip “permission denied” errors when running find in Linux? [duplicate]
Possible Duplicate:
How do I remove “permission denied” printout statements from the find program?
When I run this command in Linux (SuSE):
find / -name ant
I get many error ...
3
votes
3answers
608 views
Recursively list files with file names, folder names and permission in CentOS
Is there anyway I can list files by typing a command in the shell which lists all the file names, folder names and their permissions in CentOS?
0
votes
2answers
572 views
Giving PHP permission to write to files and folders
UPDATED FOR FURTHER CLARITY:
According to http://expressionengine.com/user_guide/installation/installation.html, it says:
For most Unix hosts the following is typical, but you may check with your ...
2
votes
4answers
422 views
Editing a file without overwrite permission
Is it possible to set permissions for file to keep it editable but without permission to overwrite?
I mean possibility to edit the file with text editor, but denying any attempt to replace the file ...
5
votes
2answers
3k views
Unable to delete file, even as root
I've got a file on remote machine (saying that, cause I don't know who the heck created it), that I've to remove.
user@machine:~/folder$ ls
lift_proto.db.lock.db
And permissions are like this:
...
2
votes
3answers
3k views
Run sudo as another non-root user and save in this user's home directory
I added a new group: ircuser and a new user: ircuser
In visudo I placed this line:
myuser localhost=(ircuser) NOPASSWD: /usr/bin/irssi
Created ircuser directory, where config files, caches, etc ...
3
votes
2answers
803 views
Tar overwrites read only files
I created directory test, created file 1.txt in test, wrote 'Before' in this file.
Then I went
cd ..
and used the command:
tar -cvzf ./test.tgz ./test
Then I entered the test dir again. Opened ...
4
votes
2answers
106 views
System files with strict permissions
Usually, when we run
ls -l
we can see such picture -rwx...- so the owner always has the full stack of permissions.
And usually the owner of the system files is the root. Are there any system files ...
3
votes
3answers
698 views
In Mac OS X Snow Leopard, how can one file's permissions be matched to another?
I need to make the permissions of a file exactly match the permissions of another file in OS X 10.6.
I don't see 'getfacl' or 'setfacl' as suggested in some other posts for Linux. And, it doesn't ...
3
votes
1answer
1k views
mv file without write permission to the source file
I just realised that I can move a file that I do not own and don't have write permissions on. I have write permissions to the directory, so I am guessing that is why I could move it, but in this ...
5
votes
1answer
213 views
suid-root doesn't have effect
A program from apue.
#include "apue.h"
#include <fcntl.h>
int main(int argc, char *argv[])
{
if(argc!=2)
err_quit("usage: a.out <pathname>");
if(access(argv[1], ...
5
votes
1answer
373 views
Immutable bit on AIX?
Under Linux I can:
chattr +i SOMEFILE
so that even root can't modify the SOMEFILE. Are there any similar solutions for AIX?
3
votes
1answer
141 views
Restricting access to files on an external drive
I was wondering how to restrict access to a specific drive in Unix on the Mac. I was thinking to do this in Terminal where I create a file like this mkfile 6k secure_access. And where secure_access ...
7
votes
5answers
367 views
Can I prevent a file from being created?
We have a machine that runs VMware Server. It constantly creates a file called not_configured in /etc/vmware/, which somehow makes our virtual machines not able to be started.
I wondered if there was ...
5
votes
5answers
175 views
Is there a way to see the permissions of all the intermediate directories of a path..?
I have a file path..
Is there any single command to see the file/directory permissions of all the intermediate directories in the path..?
1
vote
1answer
169 views
Permissions for making some some (but not all) files visible directly under a directory
On wikipedia I read the following:
The read permission, which grants the ability to read a file. When set
for a directory, this permission grants the ability to read the names
of files in the ...
1
vote
1answer
242 views
Sticky bit vs setgid for facilitating shared write access
Say two people with different primary unix GIDs share and need to frequently edit the same file. The users are not members of each others' primary unix GIDs, but they are both members of a common ...
4
votes
3answers
1k views
Write access without read access
Is it possible for a user to have a write access to a file and not be able to read it? How is it possible?
I tried the following commands:
debianbox@debian:~/posix/io$ touch filetest
...
0
votes
1answer
118 views
+x permission for files in directory
I'm an Ubuntu user and I'd like to change default permissions for downloaded files. Currentely all downloaded files are automatically saved with "-rw-r--r--" permissions (umask 0022). I'd like to add ...
