bash – 仅将STDOUT的最后一行重定向到文件

scalac -Xplugin:divbyzero.jar Example.scala >> output.txt

scalac -Xplugin：divbyzero.jar Example.scala的输出是：

helex@mg:~/git-repositories/my_plugin$scalac -Xplugin:divbyzero.jar Example.scala | tee -a output.txt
You have overwritten the standard meaning
Literal:()
rhs type: Int(1)
Constant Type: Constant(1)
We have a literal constant
List(localhost.Low)
Constant Type: Constant(1)
Literal:1
rhs type: Int(2)
Constant Type: Constant(2)
We have a literal constant
List(localhost.High)
Constant Type: Constant(2)
Literal:2
rhs type: Boolean(true)
Constant Type: Constant(true)
We have a literal constant
List(localhost.High)
Constant Type: Constant(true)
Literal:true
LEVEL: H
LEVEL: H
okay
LEVEL: H
okay
false
symboltable: Map(a -> 219 | Int | object TestIfConditionWithElseAccept2 | normalTermination | L,c -> 221 | Boolean | object TestIfConditionWithElseAccept2 | normalTermination | H,b -> 220 | Int | object TestIfConditionWithElseAccept2 | normalTermination | H)
pc: Set(L,H)

我只想保存pc：在输出文件中设置(L,H)而不是其余部分.在哪个命令的帮助下,我可以实现我的目标？