07-19-2011
Of course there are many aspects in which Linux and UNIX are differing. Even UNIX is not a single system, but three major commercial UNIX system can be found on many companies servers, which are AIX, HP-UX and Solaris and they differ quite a lot among themselves. But if you are just beginning your adventure with Linux/UNIX it is better to start with Linux, as the basics are very similar and it is much easier to obtain than commercial Unixes.
8 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I want replace 2.6.15-25-server with 2.6.17 ?
$uname -r
2.6.15-25-server
1) mv /bin/uname /bin/uname.orig
2) put the following in the new /bin/uname:
#!/bin/sh
echo Uname (New Version)
/bin/uname.orig
:confused: (3 Replies)
Discussion started by: pop_black
3 Replies
2. AIX
hi ,
i have made a mistake :( on the production enviourment by change tha host name .
after that i returned back the old name.
but i think this will not afeect the system until reboot the machine.
laso i tried to telnet the syetem by the host name not by the IP address and it works fine.
... (2 Replies)
Discussion started by: habuzahra
2 Replies
3. Linux
what is the difference between
uname -m and uname -i
what it actually means (2 Replies)
Discussion started by: Dileepsp
2 Replies
4. Shell Programming and Scripting
I want use fake uname
anyone can guide? (9 Replies)
Discussion started by: redstaing
9 Replies
5. AIX
hi freinds recently i have change hostname node as using uname -s ******* but next time i saw the name using uname -n the name did t changed is that i have to reboot the system (4 Replies)
Discussion started by: senmak
4 Replies
6. Solaris
hi all,
Operating System Name : Unix Sun Solaris
Operating system release level : 5.10
Operating system version : Generic_137111-06
i know the release level that is kernel version
Generic_137111-06 what is number... (6 Replies)
Discussion started by: coxmanchester
6 Replies
7. UNIX for Advanced & Expert Users
Using the command :
echo $eup_terminal_code | tr -s 'mil vrn qcm' 'mci pql qcm'
it works,but this translation changes depending on the system.
I'd like to define the following variables ,one for each system :
mil22h_from='mil vrn frl'
mil22h_to='mci vci fci'
... (4 Replies)
Discussion started by: Pierluigi.sala
4 Replies
8. Solaris
bssmsrv223:/ 53 ] uname -a
SunOS bssmsrv223 5.10 Generic_118833-36 sun4u sparc SUNW,Sun-Fire-V245
bssmsrv223:/ 54 ]
what does 118833-36 denotes in Generic_118833-36 (2 Replies)
Discussion started by: hiten.r.chauhan
2 Replies
LEARN ABOUT X11R4
getuid32
GETUID(2) Linux Programmer's Manual GETUID(2)
NAME
getuid, geteuid - get user identity
SYNOPSIS
#include <unistd.h>
#include <sys/types.h>
uid_t getuid(void);
uid_t geteuid(void);
DESCRIPTION
getuid() returns the real user ID of the calling process.
geteuid() returns the effective user ID of the calling process.
ERRORS
These functions are always successful.
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, 4.3BSD.
NOTES
History
In UNIX V6 the getuid() call returned (euid << 8) + uid. UNIX V7 introduced separate calls getuid() and geteuid().
The original Linux getuid() and geteuid() system calls supported only 16-bit user IDs. Subsequently, Linux 2.4 added getuid32() and
geteuid32(), supporting 32-bit IDs. The glibc getuid() and geteuid() wrapper functions transparently deal with the variations across ker-
nel versions.
SEE ALSO
getresuid(2), setreuid(2), setuid(2), credentials(7)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 GETUID(2)