Dear All,

I'm trying to find any method to retrieve a logical host name instead of the real physical name when issue uname -a , for hostname command it can be done easily by alias hostname="echo logicalname" but for uname -a it's unappliacble

Thanks,
Maged

1. /home/you/uname.sh file:

(`/bin/hostname` is the physical name and `hostname` is the logical name)

uname "$@" | sed "s/`/bin/hostname`/`hostname`/"

2. .profile file:

alias uname='/home/you/uname.sh'

Luke Chi

Hi Luke,

Thank you for your help,
There are now 2 issues:
- The problem is in uname -n as we need to replace the node name , the uname without any options default to -s which mean return OS
example:
#uname
SunOS
Anyway I appended the -n option to the uname command in the entry you posted, it'll be

uname -n "$@" | sed "s/`/bin/hostname`/`hostname`/"

- The second issue is that when issuing the above command direct from the command line it worked successfully & returned the logical name

But when trying to call the file directly for test or just issue uname after set the profile file, it strangely return the physical name not the logical one.

My question now why the same command working correctly from the command line & working incorrectly when call the file

Thank You

Hi Luke,

The real need is to alias the uname with the option -n ,
aliasing uname only not help ,coz even when it'll return the logical name (for example myserv)

$uname
myserv

$uname -n
myserv -n --> which will not match the s=logical name ........???

Thank You

please double-check:

/home/oracle/bin$ grep hostname $HOME/.profile
alias hostname='echo logicalname'
/home/oracle/bin$ grep uname $HOME/.profile
alias uname='/home/oracle/bin/uname.sh'

/home/oracle/bin$ type hostname
hostname is aliased to `echo logicalname'
/home/oracle/bin$ type uname
uname is aliased to `/home/oracle/bin/uname.sh'

/home/oracle/bin$ cat uname.sh
uname "$@" | sed "s/`hostname`/logicalname/"

/home/oracle/bin$ hostname
logicalname
/home/oracle/bin$ uname
Linux
/home/oracle/bin$ uname -s
Linux
/home/oracle/bin$ uname -n
logicalname
/home/oracle/bin$ uname -a
Linux logicalname 2.6.9-34.0.1.ELsmp #1 SMP Wed May 17 17:05:24 EDT 2006 i686 i686 i386 GNU/Linux

/home/oracle/bin$ ./uname.sh
Linux
/home/oracle/bin$ ./uname.sh -s
Linux
/home/oracle/bin$ ./uname.sh -n
logicalname
/home/oracle/bin$ ./uname.sh -a
Linux logicalname 2.6.9-34.0.1.ELsmp #1 SMP Wed May 17 17:05:24 EDT 2006 i686 i686 i386 GNU/Linux

Luke Chi

Thank you a lot , it worked,
The difference was in the `hostname`;
When We wrote the logical hostname explicitly in uname.sh instead of using `hostname` it worked successfully

Thanks again

It's good to know that.

Luke Chi