Sai Vinod Irala

 Text Processing For Text processing orr data extraction on text files linux  has provided below shell commands to handle 1.cut  2.awk 3.sed 4.paste cut -d "," -f 1 file.txt cut -d "," -f 1 file.txt|sort d= delimeter f= number index for multiple files 2,3 or 2-3

 Symbolic Links or sym Links ----------------------------------------- two types of sym links --------------- 1.softlink 2.hard link 1.soft link -------------------- ln -s ~/ created for accross file sysytem  Inode address is different soft links are broken  2. Hard Links ------------------------ ln ~/ created for the files in local system Inode address is different  file permissions will be same for both  ls-l  stat file name  du -h file name 

Apache JMeter Script Recording with BadBoy|How to Record script using BadBoy tool|  Download tool :https://badboy1.software.informer.com/download/ Recordig using bad boy tool  using for mostly .net and java applications there are 3 steps to actually getting a load test running with Badboy: 1. Recording your script. 2.Parametrizing your script with a lot of users and their associated user information,  and setting think times in the script. 3.Running the script with all your users, and gathering and analyzing the results,  hopefully in a graph format.

Umask and system commands in Linux|if config network commands| umask is a variable available per linux system user based on which his files/folder permissions will be assigned by default,default umask value is 0002. ----------------------------------------------------------------------------------------------------------------------------- user/system commands whoami = gives you current user of the machine logname = current user of the machine. who = shows all the users currently accessing the machine  users = only gives space separated usernames currently logged in. uname = operating system name uname -a = gives full details of the operating system. hostname = gives name of the computer hostname -i = ip address ls -l | more = displays by page the list of files. man command-name = man stands for manual and can get information about any linux command. ---------------------------------------------------------------------------------------------------------------------------- networki...

  Files and Folders Permissions In Linux|How to giveFiles permissions In Linux|Linux commandsforDevops Files and Folder permissions: ------------------------------------------------------------------------------------- Files and folders security is major part in any operating system including linux Linux is an Multi-User operation system where various different users can parallely can use the machine and underlying resources. this is the basic requirement of Linux to built-up some security features   in handling and protecting files and folders when multiple users accessing the machine. If one user is accessing Files and Folders in linux the owners or created user should have all rights to protected to be accessed/modified by any other user of the Linux System. the whole process can be achieved by Using Files  and Folder Permissions provided by Linux.  The files/folders we create in linux by default we dont need to assign permissions. Linux is granting permissio...

  Linux Commands|tail-head-cat-echo-stat|Top 20 Linux commands|Linux commands For Devops 2020| some basic commands how to create files and directories cat : ---------------------------------------------------- cat command allows us to create single or multiple files, view contain of file,concatenate files and redirect output in terminal or files concatenate files and redirect output in terminal or files. echo "hi" filename echo "end" filename "" =overide redirect the output on to the file ""=append the output onto the file ctrl+d head =is used for displaying the contents of the file from top to by default 10 lines head -n filename = n lines from top use tail : -------------------------------------------- tail is especially used to see log files of an application. tail filename = displays the bottom 10 lines of the file tail -n filename=display n lines from the bottom tail -10f filename = file stands for float on the file. display the f...