Understanding File and Directory Permissions in Linux. Wildcard characters question Mark and star

Understanding File and Directory Permissions in Linux. Wildcard characters question Mark and star 



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Swap Memory in Linux, What is swap memory and how swap memory works.

Swap Memory in Linux, What is swap memory and how swap memory works. 



Swap File System Explained in Details

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sed, awk, vmstat netstat and mail commands

Shell Scripting Tutorial-19 sed, awk, vmstat, netstat and mail commads explained.

sed command is a stream editor used for modifying the files in unix (or linux). Whenever you want to make changed to the file automatically, sed comes in handy to do this.

Awk command / tool is used to manipulate text rows and columns in a file. Awk has built in string functions and associative arrays. Awk supports most of the operators, conditional blocks and available in C language.

vmstat is a tool that reports data about your machine’s processor,free memory,swap,io and cpu resource utilisation in real time.

netstat command is used to list out LISTENING ports, Established connections.

mail utility is used to send an script out. 

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Unix Shell Scripting Complete Video Tutorial Which Helps you to write advanced scripts Just Free

Shell Scripting Video Tutorials

UNIX SHELL SCRIPTING Video Tutorial, Each Link will has one Video Follow the Links one by one any complete your Shell Scripting Training without spending Single Rupee from your pocket. 

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Complete Shell Scripting Content Video




BASICS OF UNIX

SHELL SCRIPTING BASICS

  • What is shell scripting?
  • Why to write shell script?
  • How to write shell scripts?
  • Meta data in shell scripts
  • Code in shell scripting
  • Executing shell script
  • Debugging shell scripts

BASH SHELL ABILITIES

COMMANDS

CONTROL/CONDITIONAL STATEMENTS

  • test command
  • eval command
  • expr command
  • $(( ))
  • &&, || AND - OR Operators
  • Assignment, Arithmetic, Bitwise, Logical operators
  • Numerical, string, file tests
  • If statements
  • If else Statements
  • For loop
  • While loop
  • Untill loop
  • Case statement
  • Break, sleep, continue, exit
  • Functions

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Complete RHCSA and RHCE Course Content