我正在编译 Scala 代码并将输出控制台输出写入文件。我只想将 STDOUT 的最后一行保存在文件中。这是命令:
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)
我只想在输出文件中保存 pc: Set(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?
最佳答案
只需通过 tail -n 1
将标准输出传输到您的文件
关于bash - 仅将 STDOUT 的最后一行重定向到文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4821731/