Prevent shell from exiting in single ^D
Jan 16, 2010, 12:03 (1 Talkback[s])
[ Thanks to Jadu
Saikia for this link. ]
"The function of 'Ctrl-d'(^D) key is to exit the shell.
If IGNOREEOF variable does not exist in your shell a single ^D will
exit from the shell (this is the default behavior).
"What is this $IGNOREEOF ?
"It controls the action of the shell on receipt of an EOF
character as the sole input.
"If set, the value is the number of consecutive EOF characters
typed as the first characters on an input line before bash