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#compdef tac gtac
# NetBSD (at least) has its own bare-bones version of this tool
_pick_variant gnu='Free Soft' unix --version || {
_default
return
}
_arguments -s -S : \
'(: -)--help[display help information]' \
'(: -)--version[display version information]' \
'(-b --before)'{-b,--before}'[attach separator before instead of after]' \
'(-r --regex)'{-r,--regex}'[treat separator as regular expression (with -s)]' \
'(-s --separator)'{-s+,--separator=}'[use specified separator instead of newline]:separator' \
'*: :_files'
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