Fix bind warning in .profile on login in Ubuntu

post, Sep 8, 2020 on Mitja Felicijan's blog

Recently I moved back to bash as my -default shell. I was previously using fish and got -used to the cool features it has. But, regardless of that, I wanted to move to a -more standard shell because I was hopping back and forth with exporting -variables and stuff like that which got pretty annoying.

So I embarked on a mission to make bash -more like fish and in the process found that I really -missed autosuggest with TAB on changing directories.

I found a nice alternative that emulates zsh like -autosuggestion and autocomplete so I added the following to my .bashrc file.

bind "TAB:menu-complete"
-bind "set show-all-if-ambiguous on"
-bind "set completion-ignore-case on"
-bind "set menu-complete-display-prefix on"
-bind '"\e[Z":menu-complete-backward'
-

I haven't noticed anything wrong with this and all was working fine until I -restarted my machine and then I got this error.

Profile bind error

When I pressed OK, I got into the Gnome -shell and all was working fine, but -the error was still bugging me. I started looking for the reason why this is -happening and found a solution to this error on Remote SSH Commands - bash bind -warning: line editing not enabled.

So I added a simple if [ -t 1 ] around bind statements to avoid running -commands that presume the session is interactive when it isn't.

if [ -t 1 ]; then
-  bind "TAB:menu-complete"
-  bind "set show-all-if-ambiguous on"
-  bind "set completion-ignore-case on"
-  bind "set menu-complete-display-prefix on"
-  bind '"\e[Z":menu-complete-backward'
-fi
-

After logging out and back in the problem was gone.