Avoid calling ypcat if not installed

[gdetrez]

On fedora 22, each time I try to auto-complete a hostname (e.g. ssh + TAB), I get Install package 'yp-tools' to provide command 'ypcat'? [N/y] printed 3 times in the middle of my command prompt. This is a minor annoyance, and I should probably just install yp-tools and move on but ideally zsh should only call ypcat if it is present in the system.

[laytoneverson]

+1

[sorin-ionescu]

The completion module is your problem. Just install it. It's found by default on other systems.

[bsidhipong]

That's not a reasonable solution, Sorin. These days, it's perfectly reasonable to leave out any trace of NIS, and not having ypcat installed while tabbing through hostname completion in scp is fairly invasive.

[jpts]

+1 Just come across this whilst trying to debug the ypcat error. I have no use for NIS, especially in a home environment.

[meghprkh]

This issue is ocurring again. (Though I just installed yp-tools)

[bruteforks]

this is still an issue

[leppaott]

Same issue. Seemed that it would start looping the "do you want to install yp-tools..." and it will cause unstable/slow terminal even after it seems it would've been terminated.