given an input file containing fields seperated by "," how do I retrieve information of these fields, do some work on them, then create a new input to the etc/passwd file?
someone told me to look at the "sed" command but I still cant seem to get over this problem. I want to work on the data so... (8 Replies)
I had a drive go bad. I have replaced the drive and have my system up. I have a 1-to-1 mirror raid. My mirrored boot drive brings the system up. I issued a reboot command. The system comes up gives me a login prompt and generates the error: failed write of utmpx entry:"i2".
What is i2? (1 Reply)
Hi,
I am working on a UNIX AIX system and all the entries in /etc/passwd file are in the following format..
root:!:0:0::/:/usr/bin/ksh
I have an idea abt each field, but I am confused abt the values in the second field.
If the value of the second filed is 'x' then it means the password... (2 Replies)
I am using the standard vixie-cron am seeing the following my logs : crond: (username) ORPHAN (no passwd entry) Ordinarily this is a simple matter, there is no corresponding user, but I am using central authentication and the username does exist and is usable via the standard nsswitch mechanism, so... (2 Replies)
I could not find an entry for my linux user account in /etc/passwd file. I can remember some time back one of my SA showed the entry line using some other command. Can someone please help me on this to view the details of my linux user account? (3 Replies)
Hi Folks,
I have Solaris 10, latest release.
We have passwd aging set in /etc/defalut/passwd.
I have an account that passwd should never expire. Acheived by emptying associated users shadow file entries for passwd aging.
When I reset the users passwd using passwd command, it re enables... (3 Replies)
Hi
root user creates a user using the useradd command. This command creates an entry in the /etc/passwd file. /etc/passwd file has rw permission for the root user. Now, if I happen to remove the w permission for the root user, useradd command still is successfully creating entry in the... (3 Replies)
Hi All
I had installed sudo in HP UX 11.3 and it is working fine but not able to make entry required to set permission similar to ROOT without using password (PASSWD) change option for define user in /etc/sudoers file
Please help if some know the syntex? :confused::wall: (2 Replies)
Hi All,
Please help me and guide me to write a bash/shell script on Linux box to delete parent entry with all their child entries.
example:
Parent is :
----------
dn: email=yogesh.kumar@wipro.com, o=wipro, o=in
child is:
----------
dn: cn: yogesh kumar, email=yogesh.kumar@wipro.com,... (1 Reply)
did a big mistake, changing root entry of /etc/passwd to
root:x:0:0:root:/root:/usr/bin/tmux split-window -v \; attach
as expected, now I can't login as root anymore. sudo ed /etc/passwd etc. doesn't work.
Any idea?
Use code tags to increase readability and follow the rules. (4 Replies)
Discussion started by: dodona
4 Replies
LEARN ABOUT PHP
fseek
FSEEK(3) 1 FSEEK(3)fseek - Seeks on a file pointerSYNOPSIS
int fseek (resource $handle, int $offset, [int $whence = SEEK_SET])
DESCRIPTION
Sets the file position indicator for the file referenced by $handle. The new position, measured in bytes from the beginning of the file,
is obtained by adding $offset to the position specified by $whence.
In general, it is allowed to seek past the end-of-file; if data is then written, reads in any unwritten region between the end-of-file and
the sought position will yield bytes with value 0. However, certain streams may not support this behavior, especially when they have an
underlying fixed size storage.
PARAMETERS
o $handle
-A file system pointer resource that is typically created using fopen(3).
o $offset
- The offset. To move to a position before the end-of-file, you need to pass a negative value in $offset and set $whence to
SEEK_END.
o $whence
-$whence values are:
o SEEK_SET - Set position equal to $offset bytes.
o SEEK_CUR - Set position to current location plus $offset.
o SEEK_END - Set position to end-of-file plus $offset.
RETURN VALUES
Upon success, returns 0; otherwise, returns -1.
EXAMPLES
Example #1
fseek(3) example
<?php
$fp = fopen('somefile.txt', 'r');
// read some data
$data = fgets($fp, 4096);
// move back to the beginning of the file
// same as rewind($fp);
fseek($fp, 0);
?>
NOTES
Note
If you have opened the file in append ( a or a+) mode, any data you write to the file will always be appended, regardless of the
file position, and the result of calling fseek(3) will be undefined.
Note
Not all streams support seeking. For those that do not support seeking, forward seeking from the current position is accomplished
by reading and discarding data; other forms of seeking will fail.
SEE ALSO ftell(3), rewind(3).
PHP Documentation Group FSEEK(3)