How to debug core file in Linux using gdb and crash utility ?
In this post we will look how to debug core file generated either by process fault or by system crash. To debug a core file, you need to make sure...
Month: February 2018
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How to setup an alert to know about server crash situation ?
Many times our server crashes and reboots and we remain unaware about the situation. To know this situation, we cam setup alerts on our server and take corrective action immediately...
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How to download youtube Videos & mp3 in Linux ?
In this post, we will look at an interesting plugin available on Linux system known as youtube-dl to download youtube videos or mp3 on our Linux system. Lets have a...
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Brief explanation of process related terms in linux.
In this article, we will look at different terms w.r.t process and understand them. We all should know how to manage process(es) in linux. This post is very useful for...
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How to create Zombie process using C code manually ?
Today we will see an example how to create a zombie process on our linux machine using a short c program. For this, we will open two terminal sessions. On...
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How to change minimum and maximum UIDs or GIDs assigned by useradd command ?
When we add a new user in linux, it assigns a unique UID to the user which is used to identify users and their access on linux system. Today...
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How to see kernel modules information and load/unload kernel modules in Linux or solaris ?
Kernel Module Loading/Unloading in Linux Lets see how to view kernel modules in linux and how can we load or unload a module in linux. 1. View all modules available...
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How to replace some text using sed awk, and bash ?
Today we will see how to replace some text from a string using sed, awk, tr and in bash shell. Suppose you want to remove “~” from a string, it...
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How to assign hostname in Linux without a reboot ?
In this article, we will see how to assign hostname to a linux machine temporarily or permanent without a reboot. We have already seen the tip of assigning the domain...