/usr/share/fish/completions/top.fish is in fish-common 2.4.0-1.
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 13 | # Completions for top
complete -c top -s b --description "Batch mode"
complete -c top -s c --description "Toggle command line/program name"
complete -c top -s d --description "Update interval" -x
complete -c top -s h --description "Display help and exit"
complete -c top -s i --description "Toggle idle processes"
complete -c top -s n --description "Maximum iterations" -x
complete -c top -s u --description "Monitor effective UID" -x -a "(__fish_complete_users)"
complete -c top -s U --description "Monitor user" -x -a "(__fish_complete_users)"
complete -c top -s p --description "Monitor PID" -x -a "(__fish_complete_pids)"
complete -c top -s s --description "Secure mode"
complete -c top -s S --description "Cumulative mode"
complete -c top -s v --description "Display version and exit"
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