我试过了
pancmite@atlas:~$ test ($LSD / 2) -eq 0
bash: syntax error near unexpected token `$LSD'
pancmite@atlas:~$ test $LSD / 2 -eq 0
bash: test: too many arguments
pancmite@atlas:~$ test $number -lt $LSD
bash: test: -lt: unary operator expected
我想要一行命令。