How to Get the Size of a Directory in Linux
You may have noticed that the size of a directory is showing only 4KB when you use the ls command to list the directory content in Linux. Is this the right size? If not,...
2daygeek :- Linux & Open Source Tips
Bash Script to Delete Files/Folders Older Than “X” Days in Linux
Disk Usage Monitoring tools are capable of alerting us when a given threshold is reached. But they don’t have the ingenuity to fix the disk usage problem on their own. Manual intervention is needed...
How to Run the Top Command in Batch Mode
The Linux Top command is the best and most well known command that everyone uses to monitor Linux system performance. You probably already know most of the options available, except for a few options,...
Bash Script to Generate System Uptime Reports on Linux
For some purposes you may need to collect the Linux system uptime report once a month. If so, you can use one of the following bash scripts based on your requirements. Why should we...
How to Execute Commands on Remote Linux System over SSH
We may need to perform some commands on the remote machine. To do so, log in to a remote system and do it, if it’s once in a while. But every time you do...
How to Remove (Delete) Symbolic Links in Linux
You may have the opportunity to create or remove symbolic links on Linux. If yes, do you know how to do it? Have you already done that? Are you aware of that? If yes...
How to Find and Replace a String in File Using the sed Command in Linux
When you are working on text files you may need to find and replace a string in the file. Sed command is mostly used to replace the text in a file. This can be...
Bash Script to Send a Mail About New User Account Creation
For some purposes you may need to keep track of new user creation details on Linux. Also, you may need to send the details by mail. This may be part of the audit objective...
How to Get Average CPU and Memory Usage from SAR Reports Using the Bash Script
Most Linux administrator monitor system performance with SAR report because it collects performance data for a week. But you can easily extend this to four weeks by making changes to the “/etc/sysconfig/sysstat” file. Also,...
Three Ways to Exclude Specific Packages from Yum Update
As part of system update, you may need to exclude few of the packages due to application dependency in Red Hat based system. If so, how to exclude and what are all the ways...
