Shell - Some useful tips to work with Shell

1. tell which shell is running. 

how do I find which shell I'm using.

trick 1: 

echo $SHELL

trick 2:

ps -p $$

2. Set environment variable in different shell.

See "Linux set environment variables in my shell"

If you are using BASH / KSH type 

Code:

export VARIABLE-NAME=VALUE  	
export VAR1=foo

If you are using BASH CSH type

Code:

setenv VARIABLE-NAME=VAULE 	
setenv VAR1=foo

If you are using SH type

Code:

set VARIABLE-NAME=VALUE 	
set VAR1=foo