Linux the world of mystery, alternatives, different characteristics. This features of the Linux has colored also the version or distributions of the Linux. Linux provides a lot of different distros each of them represents a different soul. In this tutorial, we will examine the features, pros&const and use cases of the different well known and least known Linux distributions. Ubuntu Ubuntu is complete Desktop, Server and Mobile Linux distributions. It...
Linux is mostly known with its distributions or distros but the reality is that Linux is just a kernel or core of the operating system. All user space and some of the operating space related tools are provided by distributions. We can actually call distribution as a operating system. Linux is very different from Windows where with its open and dynamic architecture we can create different type of operating systems...
limits.conf configuration file is used to limit user, domain, process related metrics. Limits.conf is related with pam_limits module. Configuration File There is configuration file named limits.conf and located at /etc/security/ . The default content of this file is like below.
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#<domain> <type> <item> <value> # #* soft core 0 #root hard core 100000 #* hard rss 10000 #@student hard nproc 20 #@faculty soft nproc 20 #@faculty hard nproc 50 #ftp hard nproc 0 #ftp - chroot /ftp #@student - maxlogins 4 |
As we can see all configurations are commented so they are not effective. There is also a directory which is use to store configuration files in a separate files to maintain easily. This...
Linux stat command used to display files and file system information like permission, size etc. In this tutorial we will look various usage examples. Show File Information All information about a file can be get without providing any parameter. We will only provide the file name.
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$ stat a.txt |
As we can see from screenshot there is information about file name , size, blocks, inode, device, access,modify,change dates, user and group id...
Linux provides cut command for remove sections from each lines of output in bash. cut command provides mechanism to filter extract column/text from file or standard output. Detailed examples can be found below. We have following text file named fruits.txt
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apple 1 good grape 5 bad banana 2 not bad |
Syntax
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cut OPTION... [FILE]... |
Select Column Cut command provides ability to select specified column according to character number for all rows. Here we will print all rows 3 character line by line to...
Tmux is terminal multiplexer popular in Linux world. Tmux provides multiple windows in a single session. Tmux also have the ability to detach and run after disconnect and attach after connection. This is very useful for system administrators. Man Man page of tmux provides a lot of detailed features. To get more information man page of tmux can be used like below.
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$ man tmux |
Start Tmux Tmux is a terminal emulator...
As a system administrator monitoring systems is very important job. Actually we can state that half of system administrating is monitoring and anticipating systems and their events. In this tutorial we will look Linux monitoring tools and their features. As I know there is a lot of tools to monitor and debug Linux system,network,disk,process and applications so I have categorized them like below General Process Network Disk Application General Nagios...
One of the most asked question about files in Linux is how can I list file sizes in different formats? In this post we will look different commands to get file sizes. ls Command ls command is primary command to list and get information about files and directories in Linux. ls command can be used with -l parameter to get size of files.
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$ ls -l nmap-7.31.tgz |
We listed file nmap-7.31.tgz file size...
Operating systems are bed for applications. These applications are executed as processes. Process start, waits and ends. Through their life time their complete given jobs. In this guide we will look how to kill Linux process in different ways. List Process To kill process we need to get information about process like process id, owner etc. One way to list Linux process is perhaps the most popular way using ps command like...
Mint is Linux operating system which is based Ubuntu. Mint uses Ubuntu packages and ads some tricks to make things modern, elegant and comfortable. Mint is popular operating system which can be seen from distrowatch.com web page. What Makes Mint Different Out of box multimedia and codec support Free, no cost and open source Big and friendly community which helps users Based Ubuntu which provides a lot of applications and...
