xterm config in /etc/bashrc

[Lrrr]

The following line is in the /etc/bashrc file. I was trying to decipher it but no google results explain it in detail.

PROMPT_COMMAND='echo -ne "\033]0;${USER}${HOSTNAME%%.*}:${PWD/#$HOME/~}\007"'

I understand that \033 is the ASCII character for ESC but not sure what ]0 does or anything after the HOSTNAME variable.

TIA

[gooney0]

Lrrr,

While I don't have all the codes in memory here is some of it:

The surrounding "ticks" mean execute the command. The result of the command will become the value of the PROMPT_COMMAND variable.

echo -ne means to echo, allow for escaped characters, and do not end with a new line.

${USER} means to insert the value of the variable USER.

For more information look at

man bash

see the sections:

"Brace Expansion" and "Parameter Expansion"

Fair warning it's heavy reading if you're not already into shell scripting.

-Gooney0