Possible Duplicate:What is $debian_chroot in .bashrc?In Bash, why is PROMPT_COMMAND set to something invisible? I logged into my computer from a normal user and executed the following command:pratheep@pratheep-laptop:~$ echo $PS1\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\u@\h:\w\$I know that if I keep the value of PS1='\u@\h:\w\$ ' then also it will display the same.I want to know what the extra thing in front i.e.\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)} is for?
Doubt on the value of PS1 environment variable
bash;prompt