从java和CLI向crontab添加cron表达式时遇到问题

Question

我正在运行下面的命令，并将两个参数传递给我的脚本文件（下面的命令是从java构造的）：

sh /home/accure/Desktop/scripts/cronhandler.sh "/home/accure/Desktop/scripts/pipeline.sh 028d8ccb-4c46-4e02-a9b0-3c97a383daaf" "* * * * */5"

其中，< code > "/home/accure/Desktop/scripts/pipeline . sh 028 D8 CCB-4c 46-4 e02-a9b 0-3c 97a 383 daaf " 是第一个参数，< code > * * * * * * */5 " 是第二个参数，它基本上是一个cron表达式。

＜code＞cronhandler。sh是我的脚本文件，其中包含以下代码：

if [ "$#" -eq 2 ]
then
    echo "Crontab with create & update functionality"
    command=$1
    cron_exp=$2
        echo "cron_exp=$cron_exp"
        echo "command=$command"
        cron_exp=`echo $cron_exp | sed 's/"//g' `
        command=`echo $command | sed 's/"//g' `
        echo "cron_exp=$cron_exp"
        echo "command=$command"
    if [[ "$cron_exp" != " " && "$command" != " " ]]
    then
                crontab -l | grep -q "$command"
        if [ $? -eq 0 ]
        then
                        crontab -l | grep -v "$command" | crontab -
            echo "CRON entry deleted successfully.."
        else
            echo "CRON entry deletion failed."
        fi
                crontab -l | grep -q "$command" || (crontab -l 2>/dev/null; echo "$cron_exp $command") | crontab -
        if [ $? -eq 0 ]
        then
            echo "CRON entry added successfully.."
        else
            echo "CRON entry addition failed."
        fi      
    fi
fi

我在运行脚本时收到的错误如下。实际上，它列出了当前工作目录中的文件和文件夹，而不是将cron表达式添加到cron选项卡。

带有创建功能的Crontab

注意：而是添加到crontab，cron表达式中的*列出了我当前工作目录中的文件和文件夹。

下面给出了我调用命令行的Java代码:

字符串管道文件路径="sh /home/accure/Desktop/scripts/pipeline.sh028d8ccb-4c46-4e02-a9b0-3c97a383daaf"；

        String cronExp="* * * * */5";

        pipelineFilePath = "\"" + pipelineFilePath + "\"";

        cronExp = "\"" + cronExp + "\"";

        command = "sh " + /home/accure/Desktop/scripts/cronhandler.sh + " " + pipelineFilePath + " " + cronExp;

        runScript(command);

        public void runScript(String script) throws InterruptedException {
        final String cmd = script;
        Thread runScript = new Thread(new Runnable() {
        public void run() {
            try {
                DefaultExecutor executor = new DefaultExecutor();
                CommandLine commandLine = CommandLine.parse(cmd);
                executor.setExitValue(1);
                int exitValue = executor.execute(commandLine);
            } catch (Exception ex) {
            }
        }
    });
    runScript.start();
    Thread.sleep(10000);
}

Answer 1

试着用单引号(< code>')代替双引号(< code>")来括住你的论点:

sh /home/accure/Desktop/scripts/cronhandler.sh '/home/accure/Desktop/scripts/pipeline.sh 028d8ccb-4c46-4e02-a9b0-3c97a383daaf' '* * * * */5'

这将防止您的外壳的文件名扩展。