symlinks always have 777 permissions on any system I've been on. Their permissions don't actually matter, only the file they point to. So you're just chmod-ing the same device twice here.
If you really do need to apply a file's own permissions to itself, I've strace'd this bit of silliness and verified that it really does stat the file then set permissions on itself again with fchmod:
I just downloaded a updating make file to build Ethereal to .dll file, but I don't know how to update the old make file with this new one. Please help.. thnx a lot. (1 Reply)
Hello,
i need some help/advice on how to solve a particular problem.
these are the users:
|name | group |
---------- ---------------
|boss | department1 |
|assistant | department1 |
|employee | department1 |
|spy | department2 |
this is the... (0 Replies)
I need to apply password protection to a xls file.I had looked at SpreadSheet::WriteExcel but problem being i dont want to write the contents of file again as the formatting the file would be a pain.
Is there way in which i write a entire file in one go , something like this
... (0 Replies)
Hi Guys,
Can you tell me if unix permissions apply to sub dirs?
Dir is /home/ops/batch/files/all
/home is rwxrwxrwx
ops is rwxrwxrwx
batch is rwxr-wr-w
files is rwxrwxrwx
all is rwxrwxrwx
Having problems writing to all (does the userid nee to be the batch owner... (1 Reply)
Dear members..
I have a fixed width file. Requirement is as below:-
1. Scan each record from this fixed width file
2. Check for value under field no "6" equals to "ABC". If yes, then filter this record into the output file
Please suggest a unix command to achieve this, my guess awk might... (6 Replies)
Hi All,
I would like to read the permission from a file and wanted to apply the same permission to another file.
say for example,
f1 755
first...i have to read the permission type (which is differ for each file) and need to apply the same for f2
a1 666
i have to get this... (5 Replies)
HI there. My teacher asked us to write a code for this question
Write a Unix shell script named 'mode' that accepts two or more arguments, a file mode, a command and an optional list of parameters and performs the given command with the optional parameters on all files with that given mode. ... (1 Reply)
Write a Unix shell script named 'mode' that accepts two or more arguments, a file mode, a command and an optional list of parameters and performs the given command with the optional parameters on all files with that given mode.
For example, mode 644 ls -l should perform the command ls -l on all... (5 Replies)
I have a .csv file and I want to md5 hash the second column for each row in the file.
File is something like
data1,foobar1,123,345
data2,foobar2,456,9393
data3,foobar3,1002,10109
Output would be like
data1,6c81243028f8e455fa617dd5f0232ce1,123,345... (3 Replies)
In the bash below I am asking the user for a panel and reading that into bed. Then asking the user for a file and reading that into file1.Is the grep in bold the correct way to apply the selected panel to the file? I am getting a syntax error. Thank you :)
... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT OPENDARWIN
strmode
STRMODE(3) BSD Library Functions Manual STRMODE(3)NAME
strmode -- convert inode status information into a symbolic string
LIBRARY
Utility functions from BSD systems (libbsd, -lbsd)
SYNOPSIS
#include <bsd/string.h>
void
strmode(mode_t mode, char *bp);
DESCRIPTION
The strmode() function converts a file mode (the type and permission information associated with an inode, see stat(2)) into a symbolic
string which is stored in the location referenced by bp. This stored string is eleven characters in length plus a trailing NUL.
The first character is the inode type, and will be one of the following:
- regular file
b block special
c character special
d directory
l symbolic link
p fifo
s socket
w whiteout
? unknown inode type
The next nine characters encode three sets of permissions, in three characters each. The first three characters are the permissions for the
owner of the file, the second three for the group the file belongs to, and the third for the ``other'', or default, set of users.
Permission checking is done as specifically as possible. If read permission is denied to the owner of a file in the first set of permis-
sions, the owner of the file will not be able to read the file. This is true even if the owner is in the file's group and the group permis-
sions allow reading or the ``other'' permissions allow reading.
If the first character of the three character set is an ``r'', the file is readable for that set of users; if a dash ``-'', it is not read-
able.
If the second character of the three character set is a ``w'', the file is writable for that set of users; if a dash ``-'', it is not
writable.
The third character is the first of the following characters that apply:
S If the character is part of the owner permissions and the file is not executable or the directory is not searchable by the owner, and
the set-user-id bit is set.
S If the character is part of the group permissions and the file is not executable or the directory is not searchable by the group, and
the set-group-id bit is set.
T If the character is part of the other permissions and the file is not executable or the directory is not searchable by others, and the
``sticky'' (S_ISVTX) bit is set.
s If the character is part of the owner permissions and the file is executable or the directory searchable by the owner, and the set-
user-id bit is set.
s If the character is part of the group permissions and the file is executable or the directory searchable by the group, and the set-
group-id bit is set.
t If the character is part of the other permissions and the file is executable or the directory searchable by others, and the ``sticky''
(S_ISVTX) bit is set.
x The file is executable or the directory is searchable.
- None of the above apply.
The last character is a plus sign ``+'' if any there are any alternate or additional access control methods associated with the inode, other-
wise it will be a space.
SEE ALSO chmod(1), find(1), stat(2), getmode(3), setmode(3)HISTORY
The strmode() function first appeared in 4.4BSD.
BSD July 28, 1994 BSD