Can't push git updates & run Unix commands when connecting via SSH

Question

I have installed java 8 on my bluehost VPS. I have followed http://tecadmin.net/install-java-8-on-centos-rhel-and-fedora/ instructions .

in order to add directories to PATH variable I have added

PATH=$PATH:/opt/jdk1.8.0_45/bin:/opt/jdk1.8.0_45/jre/bin
JAVA_HOME=/opt/jdk1.8.0_45
JRE_HOME=/opt/jdk1.8.0_45/jre

to etc/environment file.

after that I can't push upgrades to my git repository and when I login via ssh I can't run unix command.

my server OS is CentOS and its 64bit

Thanks for your help.

EDIT :

---

Error shown in git :

git -c diff.mnemonicprefix=false -c core.quotepath=false push -v --tags origin master:master
Pushing to root@162.144.42.157:/home/darmanjo/darmanjoo.git

bash: git-receive-pack: command not found

fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

SSH Problem :

login as: root
root@162.144.42.157's password:
Last login: Tue Apr 21 15:26:53 2015 from 109-110-182-162-dynamic.shabdiznet.com
-bash: id: command not found
-bash: tty: command not found
root@server.darmanjoo.com [~]# ls
-bash: ls: command not found
root@server.darmanjoo.com [~]#

also my echo $PATH shows :

/usr/local/sbin:/usr/sbin:/sbin:$PATH:/opt/jdk1.8.0_45/bin:/opt/jdk1.8.0_45/jre/bin:/root/bin

Answer 1

That page is incorrect.

Those assignment lines are not valid in /etc/environment .

Variable expansion does not occur for lines in /etc/environment .

See this superuser question for some more discussion about this.