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function math --description "Perform math calculations in bc"
if count $argv >/dev/null
switch $argv[1]
case -h --h --he --hel --help
__fish_print_help math
return 0
end
set -l out (echo $argv|env BC_LINE_LENGTH=0 bc)
test -z "$out"; and return 1
echo $out
switch $out
case 0
return 1
end
return 0
end
return 2
end
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