未找到JVM启动标志

Question

在阿里巴巴云Linux 3.2104 64位上运行start.sh

start.sh内容：

#!/bin/sh

java -Xms3G -Xmx3G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200
-XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch
-XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M
-XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4
-XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90
-XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem
-XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs
-Daikars.new.flags=true -jar paper.jar nogui

然后控制台输出：

start.sh: line 4: -XX:+UnlockExperimentalVMOptions: command not found
start.sh: line 5: -XX:G1NewSizePercent=30: command not found
start.sh: line 6: -XX:G1ReservePercent=20: command not found
start.sh: line 7: -XX:InitiatingHeapOccupancyPercent=15: command not found
start.sh: line 8: -XX:G1RSetUpdatingPauseTimePercent=5: command not found
start.sh: line 9: -XX:MaxTenuringThreshold=1: command not found
start.sh: line 10: -Daikars.new.flags=true: command not found

java版本：

OpenJDK Runtime Environment Corretto-17.0.2.8.1 (build 17.0.2+8-LTS)
OpenJDK 64-Bit Server VM Corretto-17.0.2.8.1 (build 17.0.2+8-LTS, mixed mode, sharing)```

I am not a native speaker, sorry for my poor explanation

Answer 1

您的命令有多行--在bash中，所有这些都必须在一行上，或者使用行继续字符。所以你有两个选择：

都在一条线上：

java -Xms3G -Xmx3G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar paper.jar nogui

或者使用行续。

java -Xms3G -Xmx3G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 \
-XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch \
-XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M \
-XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 \
-XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 \
-XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem \
-XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs \
-Daikars.new.flags=true -jar paper.jar nogui