我有一个带有方法 status()
和 start()
的 shell 脚本。代码如下:
#function to check the jmeter processes running
status(){
PID=$(ps -ef | grep jmeter|grep -v grep)
echo "The jmeter processes running are: \n$PID"
}
#function to run the .jmx file given by the user at run time
start(){
echo "Please enter the file name .jmx extension"
read file
echo "Please enter the log file name .jtl extension"
read log_file
sh /home/ubuntu/apache-jmeter-3.0/bin/jmeter.sh -n -t $file -l $log_file &
}
while [ "$1" != "" ]; do
case "$1" in
start)
jmeter_start
;;
status)
jmeter_status
;;
*)
echo $"Usage: $0 {start|status}"
exit 1
esac
shift
done
现在当我运行这个脚本时,我必须检查它是否已经在运行,如果它正在运行我必须退出。让我知道如何执行此操作。
最佳答案
在函数开头加一个flag设置为1,在函数结束前设置为0,随意查询。
#function to check the jmeter processes running
status(){
PID=$(ps -ef | grep jmeter|grep -v grep)
echo "The jmeter processes running are: \n$PID"
}
#function to run the .jmx file given by the user at run time
start(){
export start_flag=1
echo "Please enter the file name .jmx extension"
read file
echo "Please enter the log file name .jtl extension"
read log_file
sh /home/ubuntu/apache-jmeter-3.0/bin/jmeter.sh -n -t $file -l $log_file &
export start_flag=0
}
另一种选择是写入外部文件并查询它。
关于linux - 用于检查进程是否已在运行并在是时退出的 Shell 脚本,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38126347/