[Bug 905348] bash: tab completion with shell variable changes command line with backslash
http://bugzilla.opensuse.org/show_bug.cgi?id=905348 http://bugzilla.opensuse.org/show_bug.cgi?id=905348#c33 James Carter <jimc@math.ucla.edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jimc@math.ucla.edu --- Comment #33 from James Carter <jimc@math.ucla.edu> --- Mee2! Versions: OpenSuSE "Leap" 42.1, bash-4.2-78.1.x86_64
From patch SUSE-RU-2016:1515-1 (2016-06-07) mentioned in comment 32.
In my ~/.bashrc I put "shopt -s direxpand" and that solves the problem of tab-completing a command argument where the user typed a shell variable. E.g. I type ls $HOME/.s (tab), expands to /root/.ssh/ Then I type kno (tab), expands to /root/.ssh/known_hosts I hit Return and "ls" shows /root/.ssh/known_hosts This is all my idea of correct behavior and reproduces the behavior seen before the above patch. Do "shopt direxpand" to see what the current state of this option is. See also Ubuntu bug 778627 https://bugs.launchpad.net/ubuntu/+source/bash/+bug/778627 with a long discussion of what they did or didn't do 3 years ago about this issue, and one or two intemperate comments. One user points out that the patch (bash - 4.2-2ubuntu2.1 (2013-04-09) for Precise Pangolin) is not a "fix" but rather a "workaround", because it adds a new Bash option "direxpand" which is off by default, and to get the fix the user has to turn it on, whereas a "fix" would restore the original non-buggy behavior. Jimc says: any chance of turning on direxpand by default, as a disto-specific "feature"? Bash completion is a can of worms with a lot of user training and maintenance burden, and changes occurring at random which greatly annoy the users. I commiserate with werner Fink who has to balance competing values: user stability, useful functionality, and lack of control by the distro of what happens upstream. -- You are receiving this mail because: You are on the CC list for the bug.
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