fish <- zsh shellscript やワンライナー変換

function hoge() {
}

function hoge
end

if [ -e hoge.text ]; then
    処理内容
fi

if test "$fish" = "flounder"
    echo FLOUNDER
end

# or

if test "$number" -gt 5
    echo $number is greater than five
else
    echo $number is five or less
end

if [ -e hoge.txt]

if test -f hoge.txt

eval ${cmd1}

( cmd1 )