The shell login scripts are the script that launch automatically after a login shell and permit to store permanently the values of environment variables.
bashrc is executed by bash for non-login shell.
You can found them in two directory:
The login script mechanisms depends of the shell type.
| Scope | Shell | Script or directory to modify |
|---|---|---|
| User | Bash | ~/.bash_profile |
| User | Bourne or Korn shell | ~/.profile |
| User | C shell (csh) | ~/.login |
| Global (All users except root) | Bash | /etc/profile.d |
| root | Bash | /root/.bash_profile |
Bash - The /etc/profile is the main entry point and call all custom script in the directory (/etc/profile.d). Add your global configuration in this directory. Example:
export JAVA_HOME=$(readlink -f /usr/bin/java | sed "s:/bin/java::")
You can then make the changes to .bash_profile take effect immediately by typing the following command:
source .bash_profile
source ./.bash_profile
is the same as
. ./.bash_profile
To edit the bash_profile :
gedit .bash_profile
PATH=$PATH:$HOME/bin:/usr/kerberos/sbin:/usr/local/sbin:/sbin:/usr/sbin:/root/bin:
Note the fullstop before 'bash'. This '.' makes it a hidden file