diff --git a/sources/tech/20200107 Bash Script to Check How Long the High CPU-Memory Consumption Processes Runs on Linux.md b/sources/tech/20200107 Bash Script to Check How Long the High CPU-Memory Consumption Processes Runs on Linux.md new file mode 100644 index 0000000000..fc3818c344 --- /dev/null +++ b/sources/tech/20200107 Bash Script to Check How Long the High CPU-Memory Consumption Processes Runs on Linux.md @@ -0,0 +1,149 @@ +[#]: collector: (lujun9972) +[#]: translator: ( ) +[#]: reviewer: ( ) +[#]: publisher: ( ) +[#]: url: ( ) +[#]: subject: (Bash Script to Check How Long the High CPU/Memory Consumption Processes Runs on Linux) +[#]: via: (https://www.2daygeek.com/bash-script-to-check-how-long-the-high-cpu-memory-consumption-processes-runs-on-linux/) +[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/) + +Bash Script to Check How Long the High CPU/Memory Consumption Processes Runs on Linux +====== + +In the past, we have written three different articles to identify this using Linux commands. + +You can access them immediately by going to the relevant URLs below. + + * **[How to Find High CPU Consumption Processes in Linux][1]** + * **[How to Find Out Top Memory Consuming Processes in Linux][2]** + * **[Five Ways to Check How Long a Process Has Been Running in Linux][3]** + + + +Two scripts are included in this tutorial, which helps you to identify how long the high CPU/memory consumption processes are running on Linux. + +The script will show you the process ID, the owner of the process, the name of the process and how long the processes are running. + +This will help you identify which jobs are running overtime (which must be completed beforehand). + +This can be achieved using the ps command. + +### What’s ps Command + +ps stands for processes status, it display the information about the active/running processes on the system. + +It provides a snapshot of the current processes along with detailed information like username, user id, cpu usage, memory usage, process start date and time command name etc. + +### 1) Bash Script to Check How Long the High CPU Consumption Processes Runs on Linux + +This script will help you to identify how long the high CPU consumption processes has been running on Linux. + +``` +# vi /opt/scripts/long-running-cpu-proc.sh + +#!/bin/bash +ps -eo pid,user,ppid,%mem,%cpu,cmd --sort=-%cpu | head | tail -n +2 | awk '{print $1}' > /tmp/long-running-processes.txt +echo "--------------------------------------------------" +echo "UName PID CMD Process_Running_Time" +echo "--------------------------------------------------" +for userid in `cat /tmp/long-running-processes.txt` +do +username=$(ps -u -p $userid | tail -1 | awk '{print $1}') +pruntime=$(ps -p $userid -o etime | tail -1) +ocmd=$(ps -p $userid | tail -1 | awk '{print $4}') +echo "$username $userid $ocmd $pruntime" +done | column -t +echo "--------------------------------------------------" +``` + +Set an executable **[Linux file permission][4]** to **“long-running-cpu-proc.sh”** file. + +``` +# chmod +x /opt/scripts/long-running-cpu-proc.sh +``` + +When you run this script, you will get an output like the one below. + +``` +# sh /opt/scripts/long-running-cpu-proc.sh + +---------------------------------------------------- +UName PID CMD Process_Running_Time +---------------------------------------------------- +daygeek 5214 Web 01:18:48 +daygeek 5748 Web 01:08:20 +daygeek 8043 inkscape 22:11 +daygeek 5269 Web 01:18:31 +daygeek 1712 Web 10:44:50 +daygeek 5335 RDD 01:17:54 +daygeek 1639 firefox 10:44:51 +daygeek 7793 nautilus 24:14 +daygeek 6301 Web 57:40 +---------------------------------------------------- +``` + +### 2) Bash Script to Check How Long the High Memory Consumption Processes Runs on Linux + +This script will help you to identify how long the top memory consumption processes has been running on Linux. + +``` +# sh /opt/scripts/long-running-memory-proc.sh + +#!/bin/bash +ps -eo pid,user,ppid,%mem,%cpu,cmd --sort=-%mem | head | tail -n +2 | awk '{print $1}' > /tmp/long-running-processes-1.txt +echo "--------------------------------------------------" +echo "UName PID CMD Process_Running_Time" +echo "--------------------------------------------------" +for userid in `cat /tmp/long-running-processes-1.txt` +do +username=$(ps -u -p $userid | tail -1 | awk '{print $1}') +pruntime=$(ps -p $userid -o etime | tail -1) +ocmd=$(ps -p $userid | tail -1 | awk '{print $4}') +echo "$username $userid $ocmd $pruntime" +done | column -t +echo "--------------------------------------------------" +``` + +Set an executable Linux file permission to **“long-running-memory-proc.sh”** file. + +``` +# chmod +x /opt/scripts/long-running-memory-proc.sh +``` + +When you run this script, you will get an output like the one below. + +``` +# sh /opt/scripts/long-running-memory-proc.sh + +---------------------------------------------------- +UName PID CMD Process_Running_Time +---------------------------------------------------- +daygeek 1639 firefox 10:44:56 +daygeek 2997 Web 10:39:54 +daygeek 5269 Web 01:18:37 +daygeek 1712 Web 10:44:55 +daygeek 8043 inkscape 22:17 +daygeek 5214 Web 01:18:54 +daygeek 1898 Web 10:44:48 +daygeek 1129 Xorg 10:45:07 +daygeek 6301 Web 57:45 +---------------------------------------------------- +``` + +-------------------------------------------------------------------------------- + +via: https://www.2daygeek.com/bash-script-to-check-how-long-the-high-cpu-memory-consumption-processes-runs-on-linux/ + +作者：[Magesh Maruthamuthu][a] +选题：[lujun9972][b] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://www.2daygeek.com/author/magesh/ +[b]: https://github.com/lujun9972 +[1]: https://www.2daygeek.com/how-to-find-high-cpu-consumption-processes-in-linux/ +[2]: https://www.2daygeek.com/linux-find-top-memory-consuming-processes/ +[3]: https://www.2daygeek.com/how-to-check-how-long-a-process-has-been-running-in-linux/ +[4]: https://www.2daygeek.com/understanding-linux-file-permissions/