#compdef sysctl
case $OSTYPE in
*freebsd[5-9].*|freebsd4.[4-9]*)
local -a sysctlvars
sysctlvars=( $(sysctl -aN) )
_arguments -s -A "-*" \
'(*)-a[list all]' \
'-b[binary output]' \
'(-n)-N[show only variable names]' \
'(-N)-n[show only variable values]' \
'(-x)-o[show opaques as well (values suppressed)]' \
'(-o)-x[show opaques as well (entire values)]' \
'(-a)*:sysctl variable:_multi_parts -i . sysctlvars'
;;
freebsd[0-4].*|darwin*|dragonfly*)
: ${(A)_cache_sysctlvars:=${${$(sysctl -A 2>/dev/null):#[^a-z]*}%%:*}}
_arguments -s -A "-*" \
'(-w -X *)-a[list all]' \
'(-w -X *)-A[show all opaques (values suppressed)]' \
'(-w)-b[binary output]' \
'(-w)-n[show only variable values]' \
'(-a -A -b -n -X)-w[write mode]' \
'(-a -A -w *)-X[show all opaques (entire values)]' \
'(-a -A -X)*:sysctl variable:_multi_parts ${words[(r)-w]:+-S=} -i . _cache_sysctlvars'
;;
linux*)
_arguments -A "-*" \
'-n[show only variable values]' \
'(-n -p -a -A)-w[write mode]' \
'(-n -w -a -A *)-p[specify file to load sysctl settings from]:file:_files' \
'(-n -w -p -A *)-a[list all]' \
'(-n -w -p -a *)-A[list all in table form]' \
'(-n -p -a -A)*:sysctl variable:_files -W /proc/sys'
;;
openbsd*)
: ${(A)_cache_sysctlvars:=${${(f)"$(sysctl -a)"}%% *}}
_arguments -s -A "-*" \
'(-w -A *)-a[list all string and integer variables]' \
'(-w -a *)-A[list all known variables]' \
'(-w)-n[show only values]' \
'(-a -A -n)-w[write variable]' \
'(-a -A)*:sysctl variable:_multi_parts ${words[(r)-w]:+-S=} -i . _cache_sysctlvars'
;;
esac
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