How to use xargs command in Linux with examples.
Here we will see what is xargs command and how can we use it to simplify the complex or long tasks on Linux. What is xargs Xargs stand for extended...
Category: Linux/Unix
In this category, you can see all articles related to Unix or Linux operating System.
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View backup superblock locations on Linux filesystem and restore filesystem
Here we will check how to identify the backup superblock locations on the Linux filesystem. The superblock keeps the filesystem metadata, and multiple copies are saved by filesystem to restore...
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How to view permissions in numeric way in Linux ?
Here we will check a small trick to view the permissions in numeric way in Linux. For this, we can use the stat command with some options, or do some...
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How to view total and free inodes of a filesystem in Linux ?
I hope you must be aware of what inodes are and what happens if there are no free inodes available on the system ? Today we will check how can...
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A script to add hostname and IP address to /etc/hosts file automatically.
In this post, we will check out small script which takes hostname and IP address from the user and add it to /etc/hosts file of our Linux system automatically. So...
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What is cpio archive and how to extract and create cpio ?
It is a common question what do you mean by cpio archive and what is its use when we have gzip/xz, etc compressions already in place. And how to create...
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How to find all failed SSH login attempts in NGE Linux ?
Linux keeps tracks of all failed login attempts and this can be viewed by analyzing the /var/log/secure file. NGELinux, Centos,Redhat: # egrep "Fail(ed|ure)" /var/log/secure An example can be seen as...
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A script to collect snoop/tcpdump on Linux/Solaris Servers in case of segmentation fault ?
We faced a strange issue where a segmentation fault occurs randomly on server and there are no logs captured on server to analyze the issue. In this situation, we got...
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Linux: Warning : /dev/root/ does not exist ?
Sometimes we receive issues with PXE boot server with below text: dracut-initqueue: /dev/root does not exist The issue is caused while downloading or reading the squashfs filesystem. To correct this...
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A script to mount available CD/DVD Drive on system boot automatically ?
Now we will look how to mount a CD/DVD rom drive on Linux/Unix drive automatically on system reboot. We can use the below command/script in /etc/profile or /etc/rc.sysinit or similar...