java -version bash: /usr/bin/java: No such file or directory ?

[007casper]

ohhh! I think you are right. The jdk I used on the server was 32 bit. This computer 64 bit. That must be it. I am going to check and give status.

[007casper]

it doesnt work.

ln -s /usr/lib/jvm/jdk1.7.0_17/bin/java -> /etc/alternatives/java
bash: /etc/alternatives/java: No such file or directory

cd /etc/alternatives

java is there but in red color

at /usr/lib/jvm Java is in red color, and the rest are in light blue... the other files in the same directory is green

lrwxrwxrwx 1 root root 22 Oct 19 07:45 java -> /etc/alternatives/java
lrwxrwxrwx 1 root root 23 Mar 6 14:03 javac -> /etc/alternatives/javac
lrwxrwxrwx 1 root root 24 Oct 19 07:45 javaws -> /etc/alternatives/javaws
lrwxrwxrwx 1 root root 23 Oct 19 07:45 jexec -> /etc/alternatives/jexec

I dont know what red color means on the terminal
???

[007casper]

sudo update-alternatives --config java
update-alternatives: warning: /etc/alternatives/java is dangling, it will be updated with best choice.
There is only one alternative in link group java: /usr/lib/jvm/jdk1.7.0/bin/java
Nothing to configure.

[007casper]

fix the situation. Now it works.

It was the wrong version of jdk and the links werent updating.

I update it to right jdk version 64 bit, and remove the links and relink it.

java -version
java version "1.7.0_17"
Java(TM) SE Runtime Environment (build 1.7.0_17-b02)
Java HotSpot(TM) 64-Bit Server VM (build 23.7-b01, mixed mode)

thank you all

[schragge]

Answering PM, as it may be of interest to others even if off-topic.

FYI, default UID/GID=500 for the first created user are on RedHat-based systems, on Debian-based it's 1000.

I am using ubuntu 12.04 not redhat on the server. I am just curious why it would set to 500.

Hmm, interesting. On my system (Debian wheezy) both adduser and useradd use 1000 by default:

$ grep ^FIRST_.ID /etc/adduser.conf
FIRST_UID=1000
FIRST_GID=1000
$ grep ^.ID_MIN /etc/{login.defs,default/useradd}
/etc/login.defs:UID_MIN                  1000
/etc/login.defs:GID_MIN                  1000

These are the default values for regular user accounts if you don't specify UID/GID explicitly. Perhaps, you created a system account instead?