01-24-2011
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi Folks,
Is it possible somehow to unset all the environment variables which have been defined before in UNIX (Solaris).
Thanks,
Slava (3 Replies)
Discussion started by: spavlov
3 Replies
2. UNIX for Dummies Questions & Answers
Hi,
Can anyone recommend a site where one can practise UNIX scripting . I don't have UNIX on my machine however I have heard there are some sites which let you log on to their servers for free.
Thanks
Rohit (2 Replies)
Discussion started by: rohitv
2 Replies
3. UNIX for Advanced & Expert Users
I have been resently working on some ksh script. One of the line in the file writes:
.. /etc/.environment dev_env
I can not understand what this mean, all I know is .environment is unix system environment file. Is ".." a command? If some one can give me some clue where can I find information... (7 Replies)
Discussion started by: zzwu3591
7 Replies
4. Solaris
Hello all,
I am a bit confused not only because I am new to Solaris but because when I run "env" I get a list of variables that are not in the user .profile. Where else can the account be getting environment variables from?
Is there a .profile that applies to all accounts?
Thank you in... (4 Replies)
Discussion started by: komputersman
4 Replies
5. UNIX for Dummies Questions & Answers
Hi!
Ok, so I'm no programmer and I have basically no experience in these stuff. However I need to work on a thing (I think you call it Framework) called Root. It's a tool used by physicists. In the manual they keep talking about Environment variable. Even thou I searched for what it is on the... (5 Replies)
Discussion started by: tirwit
5 Replies
6. OS X (Apple)
what is the best way to get to know the terminal environment and command line in the Mac OS X.
is it as simple as learning the bash shell, or any shell.
I have worked in the Terminal environment in the past with some C programming and some command line basics. And with that i had to dig thru... (5 Replies)
Discussion started by: cowLips
5 Replies
7. Shell Programming and Scripting
Hi,
In a file, I have to mark duplicate records as 'D' and the latest record alone as 'C'.
In the below file, I have to identify if duplicate records are there or not based on Man_ID, Man_DT, Ship_ID and I have to mark the record with latest Ship_DT as "C" and other as "D" (I have to create... (7 Replies)
Discussion started by: machomaddy
7 Replies
8. HP-UX
Hi All,
I need to understand following three environment variables and their usages in HP Unix.
_M_ARENA_OPTS
_M_CACHE_OPTS
PTHREAD_SCOPE_SYSTEM
How does these environment variables influence multi threaded applciation and how do we decide the value of these variables? Is there... (0 Replies)
Discussion started by: angshuman
0 Replies
9. Shell Programming and Scripting
Dear folks
I have a map file of around 54K lines and some of the values in the second column have the same value and I want to find them and delete all of the same values. I looked over duplicate commands but my case is not to keep one of the duplicate values. I want to remove all of the same... (4 Replies)
Discussion started by: sajmar
4 Replies
uname(2) System Calls uname(2)
NAME
uname - get name of current operating system
SYNOPSIS
#include <sys/utsname.h>
int uname(struct utsname *name);
DESCRIPTION
The uname() function stores information identifying the current operating system in the structure pointed to by name.
The uname() function uses the utsname structure, defined in <sys/utsname.h>, whose members include:
char sysname[SYS_NMLN];
char nodename[SYS_NMLN];
char release[SYS_NMLN];
char version[SYS_NMLN];
char machine[SYS_NMLN];
The uname() function returns a null-terminated character string naming the current operating system in the character array sysname. Simi-
larly, the nodename member contains the name by which the system is known on a communications network. The release and version members
further identify the operating system. The machine member contains a standard name that identifies the hardware on which the operating sys-
tem is running.
RETURN VALUES
Upon successful completion, a non-negative value is returned. Otherwise, -1 is returned and errno is set to indicate the error.
ERRORS
The uname() function will fail if:
EFAULT The name argument points to an illegal address.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Async-Signal-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
uname(1), sysinfo(2), sysconf(3C), attributes(5), standards(5)
SunOS 5.10 21 Jul 1999 uname(2)