centos 运维 jar 包脚本
新建sh 文件
#!/bin/bash
# Define variables
JAR_FILE="your-application.jar"
JAVA_OPTS="-Xmx512m -Xms256m"
PID_FILE="pid.txt"
# Function to check if the application is running
is_running() {
[ -f "$PID_FILE" ] && ps -p "$(cat "$PID_FILE")" &> /dev/null
}
# Function to start the application
start() {
if is_running; then
echo "Application is already running."
else
nohup java $JAVA_OPTS -jar "$JAR_FILE" > /dev/null 2>&1 &
echo $! > "$PID_FILE"
echo "Application started."
fi
}
# Function to stop the application
stop() {
if is_running; then
kill "$(cat "$PID_FILE")"
rm "$PID_FILE"
echo "Application stopped."
else
echo "Application is not running."
fi
}
# Function to restart the application
restart() {
stop
start
}
# Main script logic
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
status)
if is_running; then
echo "Application is running."
else
echo "Application is not running."
fi
;;
*)
echo "Usage: $0 {start|stop|restart|status}"
exit 1
;;
esac
exit 0
启动 sh xxx.sh start
关闭 sh xxx.sh stop
重启sh xxx.sh restart
如果报类似于下面的错
com.sh: line 3: $'\r': command not found
com.sh: line 6: $'\r': command not found
com.sh: line 9: $'\r': command not found
com.sh: line 11: syntax error near unexpected token `$'{\r''
'om.sh: line 11: `stop() {
表明脚本具有 Windows 样式的行结尾(CRLF、回车 + 换行),类 Unix 系统无法正确识别它们。
要解决此问题,您可以使用文本编辑器或命令行工具将行结尾转换为 Unix 样式(LF、换行)。有几种方法可以做到这一点:
使用dos2unix:
sudo yum install dos2unix
dos2unix xxx.sh
然后再运行就行了
本文来自博客园,作者:冰莫莫,转载请注明原文链接:https://www.cnblogs.com/icemomo/p/17892637.html