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Shell Script

Memory Usage / Shell Script / system monitoring

Bash script to monitor memory usage on Linux

June 17, 2019July 19, 2021 - by Magesh Maruthamuthu - 9 Comments.

There are many open source monitoring tools are currently available in market to monitor Linux systems performance which will send an email alert when the system reaches the specified threshold …

Bash script to monitor memory usage on Linux Read More
Linux Commands / Shell Script / User Management

Four ways to lock & unlock a user account in Linux

June 11, 2019February 23, 2021 - by Magesh Maruthamuthu - 3 Comments.

If a password policy is pre-implemented in your organization, then there is no need to verify this, as locked accounts will auto-unlock according to the configuration. However, manual unlock is …

Four ways to lock & unlock a user account in Linux Read More
Linux Advanced Commands / Shell Script

Linux Shell script to monitor CPU utilization with an email alert

June 3, 2019March 20, 2021 - by Magesh Maruthamuthu - 6 Comments.

CPU performance is one aspect of measuring the performance of a system, which is essential to measure the overall system-performance. When a Linux system CPU is occupied by multiple processes, …

Linux Shell script to monitor CPU utilization with an email alert Read More
Linux Advanced Commands / Linux Commands / security / Shell Script

Two methods to check or list out installed security updates on Redhat (RHEL) & CentOS system

May 30, 2019September 9, 2019 - by Magesh Maruthamuthu - Leave a Comment

We had wrote two articles in the past about this topic and each articles were published for different requirements. If you would like to check those articles before getting into …

Two methods to check or list out installed security updates on Redhat (RHEL) & CentOS system Read More
oracle / OracleASM / Shell Script

How to map Oracle ASM Disk against Physical Disk and LUNs in Linux

May 20, 2019September 10, 2019 - by Magesh Maruthamuthu - Leave a Comment

You might have already come across  ASM, Device Mapper Multipathing (DM-Multipathing) if you are working quit long time as a Linux administrator. There are multiple ways to check these information. …

How to map Oracle ASM Disk against Physical Disk and LUNs in Linux Read More
Bash Script / Linux Administration / Linux Basic / Shell Script

How to monitor disk space usage with shell script

May 1, 2019July 22, 2021 - by Magesh Maruthamuthu - 15 Comments.

It is an important task for Linux administrators to monitor disk space usage on any system that’s used for hosting critical applications, in order to prevents the system from becoming …

How to monitor disk space usage with shell script Read More
Linux Advanced Commands / Shell Script / User Management

Four methods to add an User to specific group in Linux

April 1, 2019October 7, 2019 - by Magesh Maruthamuthu - Leave a Comment

Linux groups are organization units used to manage user accounts in Linux. It has unique numerical identification number for each users and groups in the Linux system. It’s called a …

Four methods to add an User to specific group in Linux Read More
Linux Advanced Commands / Linux Commands / Shell Script

Check whether the port is Open on Multiple Remote Linux Systems using nc Command & shell script

March 21, 2019October 12, 2019 - by Magesh Maruthamuthu - Leave a Comment

We had recently written an article to check whether the port is open on the remote Linux server. It will help you to check for single server.If you want to …

Check whether the port is Open on Multiple Remote Linux Systems using nc Command & shell script Read More
Linux Advanced Commands / Linux Commands / Shell Script / User Management

Three methods to create User accounts in Linux?

March 11, 2019October 12, 2019 - by Magesh Maruthamuthu - 2 Comments.

User account creation is one of the basic task for Linux administrator that everyone aware. Here we are going to show you something interesting about the user creation in this …

Three methods to create User accounts in Linux? Read More
Linux Advanced Commands / Linux Commands / Shell Script

5 Ways to generate a Random/Strong password in Linux terminal

March 4, 2019October 19, 2019 - by Magesh Maruthamuthu - Leave a Comment

Recently we had written an article about password strength and password score check in our website. It will help you to validate your password strength and score. We can manually …

5 Ways to generate a Random/Strong password in Linux terminal Read More

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