08-25-2009
I would suggest using umask 022 instead. Otherwise newly created directories will get invalid permissions and will not be accessible.
10 More Discussions You Might Find Interesting
1. HP-UX
I wan to create a user e.g. Tom. whenever a file is created by user Tom or FTP is done using user as Tom, the rights on the file should be 777 (by default). how can I achieve this. Please help. Its very urgent. (1 Reply)
Discussion started by: sharmavr
1 Replies
2. UNIX for Dummies Questions & Answers
Hi,
Is it true that if I am not the root I can not select access permissions to a file that I own so that my friend (who also isn't the root) can access that file?
And is it true that the only way to accomplish it is to ask the root to "put" my friend into "my" group? Then I could simply set... (1 Reply)
Discussion started by: rudo
1 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I want to execute a customised process like rating engine using a shell script from a directory other than the directory where the customizes process is placed.
I have tried it in the following way...and faced a issue
when shell script is available in directory /dir1/ and customized... (1 Reply)
Discussion started by: vkishore.btw
1 Replies
4. UNIX for Advanced & Expert Users
Hello all,
I am currently writing an application that besides other thing ,ftps files from remote machines (running linux and solaris). My problem is this: i am connecting to remote machines as a user other than root and i have found that there is a possibility that i will encounter folders with... (3 Replies)
Discussion started by: noam128
3 Replies
5. UNIX for Dummies Questions & Answers
Hello Guru,
I have very unique requirement , need some help.
I have one folder created in one the server A. In this folder , the file getting uploaded from some java based page.
then i am calling scp through key file, which works fine in another folder of server B.
Currently , what i am... (2 Replies)
Discussion started by: u263066
2 Replies
6. Red Hat
well hi to all
The thing is I need to allow particular site to just one or 2 user
not to everybody. Can anybody tell me how do i do it. If i put there
ip in exception then whole Restriction would be bypassed which i dont
want. Your Responses would be highly appreciated
THANKS in ADVANCE (0 Replies)
Discussion started by: achtani_jeetu
0 Replies
7. Shell Programming and Scripting
Hi,
I would like to retrieve a list of user ids on an AIX server along with the access rights that each id has? Can someone please help me on how this can be achieved?
Gayathri (3 Replies)
Discussion started by: ggayathri
3 Replies
8. UNIX for Dummies Questions & Answers
Dears,
I want to add a user and give him rights only for a spesific folder and take the files via ftp. The user shouldn't see the other files above or belov his folder.
lets say I have "user".
my directories:
/a
/b/d
/c
when I connect to the system I want this "user" to connect... (3 Replies)
Discussion started by: hubatuwang
3 Replies
9. Homework & Coursework Questions
good evening .. I have a plea, who I can help me with a management application user rights on the files in a Unix / Linux
I need for college .. .. and not told us no clue .. thank you (1 Reply)
Discussion started by: alex90
1 Replies
10. Red Hat
Hi,
I have three servers,For 3 servers how i can take output,all the local accounts and details of whether the access is Root or User access.
cheers (1 Reply)
Discussion started by: ranjithm
1 Replies
UMASK(2) Linux Programmer's Manual UMASK(2)
NAME
umask - set file mode creation mask
SYNOPSIS
#include <sys/types.h>
#include <sys/stat.h>
mode_t umask(mode_t mask);
DESCRIPTION
umask() sets the calling process's file mode creation mask (umask) to mask & 0777 (i.e., only the file permission bits of mask are used),
and returns the previous value of the mask.
The umask is used by open(2), mkdir(2), and other system calls that create files to modify the permissions placed on newly created files or
directories. Specifically, permissions in the umask are turned off from the mode argument to open(2) and mkdir(2).
The constants that should be used to specify mask are described under stat(2).
The typical default value for the process umask is S_IWGRP | S_IWOTH (octal 022). In the usual case where the mode argument to open(2) is
specified as:
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
(octal 0666) when creating a new file, the permissions on the resulting file will be:
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
(because 0666 & ~022 = 0644; i.e., rw-r--r--).
RETURN VALUE
This system call always succeeds and the previous value of the mask is returned.
CONFORMING TO
SVr4, 4.3BSD, POSIX.1-2001.
NOTES
A child process created via fork(2) inherits its parent's umask. The umask is left unchanged by execve(2).
The umask setting also affects the permissions assigned to POSIX IPC objects (mq_open(3), sem_open(3), shm_open(3)), FIFOs (mkfifo(3)), and
Unix domain sockets (unix(7)) created by the process. The umask does not affect the permissions assigned to System V IPC objects created
by the process (using msgget(2), semget(2), shmget(2)).
SEE ALSO
chmod(2), mkdir(2), open(2), stat(2)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2008-01-09 UMASK(2)