/usr/share/fish/completions/time.fish is in fish-common 2.2.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | complete -c time -a "(__fish_complete_subcommand -- -o --output -f --format)" --description "Command"
complete -c time -s f -l format -n "__fish_no_arguments" --description "Specify output format" -x
complete -c time -s p -l portable -n "__fish_no_arguments" --description "Use the portable output format"
complete -c time -s o -l output -n "__fish_no_arguments" --description "Do not send the results to stderr, but overwrite the specified file" -r
complete -c time -s a -l append -n "__fish_no_arguments" --description "(Used together with -o) Do not overwrite but append"
complete -c time -s v -l verbose -n "__fish_no_arguments" --description "Verbose mode"
complete -c time -l help -n "__fish_no_arguments" --description "Display help and exit"
complete -c time -s V -l version -n "__fish_no_arguments" --description "Display version and exit"
# Since time runs subcommands, it can accept any switches
complete -c time -u
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