deinstall: line 265: You: command not found

My Oracle Support document 2641767.1 describes the issue and suggests to check whether an ORACLE_HOME directory is a soft link. In case when it is not, the other possible cause of the issue is a file or directory inside the ORACLE_HOME which owned by not an ORACLE_HOME owner (file inside the ORACLE_HOME is owned by root, not grid/oracle user, for example). 

Eliminating (moving) files/directories not owned by an ORACLE_HOME owner away solved the issue.

Good Luck !!!

Shift+{Left|Right}_Arrow pressed generates C, D in bash

This situation made me stuck for a while, especially in comparison of two equal Linux systems. One Linux generates ;2D while another generates simply short D ( :-) ) when shift-left_arrow combination was pressed (it actually expected to be Esc[1;2D , but the shell ate first two symbols (Esc[ is the control sequence introducer, see console_codes (4))

It's very difficult to answer shortly what was going on because where were a lot of Linux players (program layers, terminal types etc.) in the chain between keys pressed and actually displayed on the terminal window. One of the widespread "players" is a readline library. I'm totally unable to explain that, but simple creation of the empty .inputrc file in the home directory solved the issue.

Good Luck !

sed tricks

 1. According to http://sed.sourceforge.net/sedfaq5.html#s5.10 you cannot directly process the EOL symbol (\n) using simple sed commands. You should read next line into the processing buffer and only AFTER THAT make necessary actions. For example, to change EOL to comma, use the following :

grep some_info filename_containing_info | awk '{print $6}' | sed ":a;N;s/\n/\,/;ta"