pgrep and pkill completions produce an error with busybox ps

[CamilleScholtz]

~ fish --version
fish, version 3.1.0
~ echo $version
3.1.0
~ uname -a
Linux punpun 5.5.13-zen2-punpun #1 ZEN SMP PREEMPT Sun Apr 5 20:55:32 UTC
2020 x86_64 GNU/Linux
~ echo $TERM
st-256color

error:

~ pkill ps: unrecognized option: x
BusyBox v1.31.1 (2020-04-18 19:11:24 CEST) multi-call binary.

Usage: ps [-o COL1,COL2=HEADER] [-T]

Show list of processes

    -o COL1,COL2=HEADER Select columns for display
    -T          Show threads

[zanchey]

This fix doesn't work, at least on my system with busybox; ps -o comm is still an error.

[krobelus]

That's really strange, it works on Ubuntu with busybox 1.27.2.
It's in busybox here, the standard they reference says that comm is "recognized in the POSIX locale"

I get:

$ busybox ps -o asdf
ps: bad -o argument 'asdf', supported arguments: user,group,comm,args,pid,ppid,pgid,etime,nice,rgroup,ruser,time,tty,vsz,sid,stat,rss

Maybe it is because ps is a function? But that can't be since I'm using command ps..

[zanchey]

Hm, I'm on OpenWRT with Busybox 1.30.1, which might be further trimmed down.

[zanchey]

That might be as good as it gets for now, unfortunately.