On 10/11/15, isabella parakiss <izaber...@gmail.com> wrote: > In posix mode, bash replaces ! in my PS1 with the history number. > > $ PS1=' ! ' > ! set -o posix > 513 exit > > It doesn't happen with any other prompt escape sequence, afaict. > This looks... intentional? WTF? >
Ok I've now read this page: http://tiswww.case.edu/php/chet/bash/POSIX This is awful. I found out this by enabling set -o posix in my interactive shell. bash replied with an endless loop of syntax errors because there's this in my PS1: ${var[a != b]} Then bash decided to eat up as much cpu and memory it could grab, and I had to kill-9 it. I understand that changing the standard in unfeasible but a syntax error in PS1 shouldn't destroy the shell. --- xoxo iza
